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Toplam 23208 kayıt

Hybrid Aorta Constructs via In Situ Crosslinking of Poly(glycerol-sebacate) Elastomer Within a Decellularized Matrix ocr v26

DOI        GÜLER, S., Hosseinian, P., Aydın, H.M. (2017) "Hybrid Aorta Constructs via In Situ Crosslinking of Poly(glycerol-sebacate) Elastomer Within a Decellularized Matrix ocr v26", TISSUE ENGINEERING PART C-METHODS, 23 (1) pp. 21-29 [SCI] DOI       " data-bs-content-id="YazarBilgi-21214"> GÜLER, S., Hosseinian, P., Aydın, H.M. (2017) "Hybrid Aorta Constructs via In Situ Crosslinking of Poly(glycerol-sebacate) Elastomer Within a Decellularized Matrix ocr v26", TISSUE ENGINEERING PART C-METHODS, 23 (1) pp. 21-29 [SCI] DOI        GÜLER, S., Hosseinian, P., Aydın, H.M. (2017) "Hybrid Aorta Constructs via In Situ Crosslinking of Poly(glycerol-sebacate) Elastomer Within a Decellularized Matrix ocr v26", TISSUE ENGINEERING PART C-METHODS, 23 (1) pp. 21-29 [SCI] DOI       
2017 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
TISSUE ENGINEERING PART C-METHODS

Biofabrication of Poly(glycerol sebacate) Scaffolds Functionalized with a Decellularized Bone Extracellular Matrix for Bone Tissue Engineering

Link DOI        GÜLER, S., Eichholz, K., Chariyev-Prinz, F., Pitacco, P., Aydın, H.M., Kelly, D.J., Vargel, İ. (2023) "Biofabrication of Poly(glycerol sebacate) Scaffolds Functionalized with a Decellularized Bone Extracellular Matrix for Bone Tissue Engineering", Bioengineering, 10 (30) [SCI] Link DOI       " data-bs-content-id="YazarBilgi-21215"> GÜLER, S., Eichholz, K., Chariyev-Prinz, F., Pitacco, P., Aydın, H.M., Kelly, D.J., Vargel, İ. (2023) "Biofabrication of Poly(glycerol sebacate) Scaffolds Functionalized with a Decellularized Bone Extracellular Matrix for Bone Tissue Engineering", Bioengineering, 10 (30) [SCI] Link DOI        GÜLER, S., Eichholz, K., Chariyev-Prinz, F., Pitacco, P., Aydın, H.M., Kelly, D.J., Vargel, İ. (2023) "Biofabrication of Poly(glycerol sebacate) Scaffolds Functionalized with a Decellularized Bone Extracellular Matrix for Bone Tissue Engineering", Bioengineering, 10 (30) [SCI] Link DOI       
2023 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
Bioengineering

Effects of alginate-chitosan core-shell nanoparticles encapsulated in gelatin methacrylate hydrogel on chondrogenesis of mesenchymal stem cells

DOI     Körpe, D.A., GÜLER, S., Aydın, H.M., Duman, M. (2021) "Effects of alginate-chitosan core-shell nanoparticles encapsulated in gelatin methacrylate hydrogel on chondrogenesis of mesenchymal stem cells", INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS, 72 (5) pp. 11-365 [SCI] DOI    " data-bs-content-id="YazarBilgi-21216"> Körpe, D.A., GÜLER, S., Aydın, H.M., Duman, M. (2021) "Effects of alginate-chitosan core-shell nanoparticles encapsulated in gelatin methacrylate hydrogel on chondrogenesis of mesenchymal stem cells", INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS, 72 (5) pp. 11-365 [SCI] DOI     Körpe, D.A., GÜLER, S., Aydın, H.M., Duman, M. (2021) "Effects of alginate-chitosan core-shell nanoparticles encapsulated in gelatin methacrylate hydrogel on chondrogenesis of mesenchymal stem cells", INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS, 72 (5) pp. 11-365 [SCI] DOI    
2021 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS

Supercritical Carbon Dioxide-Assisted Decellularization of Aorta and Cornea

Link DOI        GÜLER, S., Aslan, B., Hosseinian, P., Aydın, H.M. (2017) "Supercritical Carbon Dioxide-Assisted Decellularization of Aorta and Cornea", TISSUE ENGINEERING PART C: METHODS, 23 (9) pp. 540-547 [SCI] Link DOI       " data-bs-content-id="YazarBilgi-21218"> GÜLER, S., Aslan, B., Hosseinian, P., Aydın, H.M. (2017) "Supercritical Carbon Dioxide-Assisted Decellularization of Aorta and Cornea", TISSUE ENGINEERING PART C: METHODS, 23 (9) pp. 540-547 [SCI] Link DOI        GÜLER, S., Aslan, B., Hosseinian, P., Aydın, H.M. (2017) "Supercritical Carbon Dioxide-Assisted Decellularization of Aorta and Cornea", TISSUE ENGINEERING PART C: METHODS, 23 (9) pp. 540-547 [SCI] Link DOI       
2017 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
TISSUE ENGINEERING PART C: METHODS

Improvement of Decellularization Efficiency of Porcine Aorta Using Dimethyl Sulfoxide as a Penetration Enhancer

Link DOI        GÜLER, S., Aydın, H.M., Lü, L., Yang, Y. (2018) "Improvement of Decellularization Efficiency of Porcine Aorta Using Dimethyl Sulfoxide as a Penetration Enhancer", ARTIFICIAL ORGANS, 42 (2) pp. 219-230 [SSCI] Link DOI       " data-bs-content-id="YazarBilgi-21219"> GÜLER, S., Aydın, H.M., Lü, L., Yang, Y. (2018) "Improvement of Decellularization Efficiency of Porcine Aorta Using Dimethyl Sulfoxide as a Penetration Enhancer", ARTIFICIAL ORGANS, 42 (2) pp. 219-230 [SSCI] Link DOI        GÜLER, S., Aydın, H.M., Lü, L., Yang, Y. (2018) "Improvement of Decellularization Efficiency of Porcine Aorta Using Dimethyl Sulfoxide as a Penetration Enhancer", ARTIFICIAL ORGANS, 42 (2) pp. 219-230 [SSCI] Link DOI       
2018 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
ARTIFICIAL ORGANS

Evaluation of collagen foam, poly(l-lactic acid) nanofiber mesh, and decellularized matrices for corneal regeneration

Link DOI        Aslan, B., GÜLER, S., Tevlek, A., Aydın, H.M. (2018) "Evaluation of collagen foam, poly(l-lactic acid) nanofiber mesh, and decellularized matrices for corneal regeneration", JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS, 106 (6) pp. 2157-2168 [SSCI] Link DOI       " data-bs-content-id="YazarBilgi-21220"> Aslan, B., GÜLER, S., Tevlek, A., Aydın, H.M. (2018) "Evaluation of collagen foam, poly(l-lactic acid) nanofiber mesh, and decellularized matrices for corneal regeneration", JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS, 106 (6) pp. 2157-2168 [SSCI] Link DOI        Aslan, B., GÜLER, S., Tevlek, A., Aydın, H.M. (2018) "Evaluation of collagen foam, poly(l-lactic acid) nanofiber mesh, and decellularized matrices for corneal regeneration", JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS, 106 (6) pp. 2157-2168 [SSCI] Link DOI       
2018 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS

Supercritical Carbon Dioxide (sc-CO2) Assisted Decellularisation of Aorta

GÜLER, S., Hosseinian, P., Akbay, E., Onur, M.A., Aydın, H.M. (2014) "Supercritical Carbon Dioxide (sc-CO2) Assisted Decellularisation of Aorta", European Society of Biomaterials , (pp. 56), (Ağustos 2014 GÜLER, S., Hosseinian, P., Akbay, E., Onur, M.A., Aydın, H.M. (2014) "Supercritical Carbon Dioxide (sc-CO2) Assisted Decellularisation of Aorta", European Society of Biomaterials , (pp. 56), (Ağustos 2014
2014 Tebliğ/Bildiri SCI/SSCI/AHCI ESCI Scopus
European Society of Biomaterials

BIPHASIC TISSUE-SPECIFIC EXTRACELLULAR MATRIX DERIVED SCAFFOLDS PROMOTE ZONALLY DEFINED ARTICULAR CARTILAGE REGENERATION IN A CAPRINE OSTEOCHONDRAL DEFECT MODEL

   Browe, D., J.Díaz-Payno, P., Schipani, R., Burdis, R., Freeman, F., P.Ahern, D., D.Randall, L., GÜLER, S., M.Nulty, J., T.Buckley, C., A.J.Brama, P., Kelly, D.J. (2022) "BIPHASIC TISSUE-SPECIFIC EXTRACELLULAR MATRIX DERIVED SCAFFOLDS PROMOTE ZONALLY DEFINED ARTICULAR CARTILAGE REGENERATION IN A CAPRINE OSTEOCHONDRAL DEFECT MODEL", TISSUE ENGINEERING and REGENERATIVE MEDICINE , (pp. 494), (Nisan 2022  " data-bs-content-id="YazarBilgi-21223"> Browe, D., J.Díaz-Payno, P., Schipani, R., Burdis, R., Freeman, F., P.Ahern, D., D.Randall, L., GÜLER, S., M.Nulty, J., T.Buckley, C., A.J.Brama, P., Kelly, D.J. (2022) "BIPHASIC TISSUE-SPECIFIC EXTRACELLULAR MATRIX DERIVED SCAFFOLDS PROMOTE ZONALLY DEFINED ARTICULAR CARTILAGE REGENERATION IN A CAPRINE OSTEOCHONDRAL DEFECT MODEL", TISSUE ENGINEERING and REGENERATIVE MEDICINE , (pp. 494), (Nisan 2022   Browe, D., J.Díaz-Payno, P., Schipani, R., Burdis, R., Freeman, F., P.Ahern, D., D.Randall, L., GÜLER, S., M.Nulty, J., T.Buckley, C., A.J.Brama, P., Kelly, D.J. (2022) "BIPHASIC TISSUE-SPECIFIC EXTRACELLULAR MATRIX DERIVED SCAFFOLDS PROMOTE ZONALLY DEFINED ARTICULAR CARTILAGE REGENERATION IN A CAPRINE OSTEOCHONDRAL DEFECT MODEL", TISSUE ENGINEERING and REGENERATIVE MEDICINE , (pp. 494), (Nisan 2022  
2022 Tebliğ/Bildiri SCI/SSCI/AHCI ESCI Scopus
TISSUE ENGINEERING PART A

Enhancing mechanical properties of decellularized aortae via in situpolymerisation

GÜLER, S., Hosseinian, P., Aydın, H.M. (2016) "Enhancing mechanical properties of decellularized aortae via in situpolymerisation", Uluslararası Katılımlı 8. Ulusal Biyomekanik Kongresi , Türkiye, (Ekim 2016 GÜLER, S., Hosseinian, P., Aydın, H.M. (2016) "Enhancing mechanical properties of decellularized aortae via in situpolymerisation", Uluslararası Katılımlı 8. Ulusal Biyomekanik Kongresi , Türkiye, (Ekim 2016
2016 Tebliğ/Bildiri SCI/SSCI/AHCI ESCI Scopus
Uluslararası Katılımlı 8. Ulusal Biyomekanik Kongresi

Comparison of Biopolymeric, Synthetic and Natural Derived Corneal Constructs

Aslan, B., GÜLER, S., Tevlek, A., Aydın, H.M. (2017) "Comparison of Biopolymeric, Synthetic and Natural Derived Corneal Constructs", 28th European Society for Biomaterials Congress , (Eylül 2017 Aslan, B., GÜLER, S., Tevlek, A., Aydın, H.M. (2017) "Comparison of Biopolymeric, Synthetic and Natural Derived Corneal Constructs", 28th European Society for Biomaterials Congress , (Eylül 2017
2017 Tebliğ/Bildiri SCI/SSCI/AHCI ESCI Scopus
28th European Society for Biomaterials Congress

The Effect of Precolonoscopy Lavender Inhalation on Patient Anxiety and Comfort

DOI   Sayılan, S., Sayılan, A.A., MERT, S., Öztekin, S.D., Baydemir, C. (2023) "The Effect of Precolonoscopy Lavender Inhalation on Patient Anxiety and Comfort", GASTROENTEROLOGY NURSING, 46 (5) pp. 10-385 [SCI Expanded] DOI  " data-bs-content-id="YazarBilgi-21237"> Sayılan, S., Sayılan, A.A., MERT, S., Öztekin, S.D., Baydemir, C. (2023) "The Effect of Precolonoscopy Lavender Inhalation on Patient Anxiety and Comfort", GASTROENTEROLOGY NURSING, 46 (5) pp. 10-385 [SCI Expanded] DOI   Sayılan, S., Sayılan, A.A., MERT, S., Öztekin, S.D., Baydemir, C. (2023) "The Effect of Precolonoscopy Lavender Inhalation on Patient Anxiety and Comfort", GASTROENTEROLOGY NURSING, 46 (5) pp. 10-385 [SCI Expanded] DOI  
2023 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
GASTROENTEROLOGY NURSING

Cerrahi Hemşirelerinin İş Yaşam Kalitesi İle İş Güvenliğini Etkileyen Faktörlerin İncelenmesi

Link     Kersu, Ö., MERT, S. (2023) "Cerrahi Hemşirelerinin İş Yaşam Kalitesi İle İş Güvenliğini Etkileyen Faktörlerin İncelenmesi", Gümüşhane Üniversitesi Sağlık Bilimleri Dergisi, 12 (3) pp. 1221-1229 Link    " data-bs-content-id="YazarBilgi-21238"> Kersu, Ö., MERT, S. (2023) "Cerrahi Hemşirelerinin İş Yaşam Kalitesi İle İş Güvenliğini Etkileyen Faktörlerin İncelenmesi", Gümüşhane Üniversitesi Sağlık Bilimleri Dergisi, 12 (3) pp. 1221-1229 Link     Kersu, Ö., MERT, S. (2023) "Cerrahi Hemşirelerinin İş Yaşam Kalitesi İle İş Güvenliğini Etkileyen Faktörlerin İncelenmesi", Gümüşhane Üniversitesi Sağlık Bilimleri Dergisi, 12 (3) pp. 1221-1229 Link    
2023 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
Gümüşhane Üniversitesi Sağlık Bilimleri Dergisi

Prevalence and Predictors of Fear of Childbirth in Unselected Pregnant Women: A Cross-Sectional Study

DOI      Konar, N., Özcan, B., Taş, A., Yağrıncalı, E., Kaplan, E., Erduran, A., Kuzu, B., Akbarı, T., SONGUR-DAĞLI, S. (2021) "Prevalence and Predictors of Fear of Childbirth in Unselected Pregnant Women: A Cross-Sectional Study", Dokuz Eylül Üniversitesi Tıp Fakültesi Dergisi, 35 (1) pp. 13-22 [TR Dizin] DOI     " data-bs-content-id="YazarBilgi-21315"> Konar, N., Özcan, B., Taş, A., Yağrıncalı, E., Kaplan, E., Erduran, A., Kuzu, B., Akbarı, T., SONGUR-DAĞLI, S. (2021) "Prevalence and Predictors of Fear of Childbirth in Unselected Pregnant Women: A Cross-Sectional Study", Dokuz Eylül Üniversitesi Tıp Fakültesi Dergisi, 35 (1) pp. 13-22 [TR Dizin] DOI      Konar, N., Özcan, B., Taş, A., Yağrıncalı, E., Kaplan, E., Erduran, A., Kuzu, B., Akbarı, T., SONGUR-DAĞLI, S. (2021) "Prevalence and Predictors of Fear of Childbirth in Unselected Pregnant Women: A Cross-Sectional Study", Dokuz Eylül Üniversitesi Tıp Fakültesi Dergisi, 35 (1) pp. 13-22 [TR Dizin] DOI     
2021 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
Dokuz Eylül Üniversitesi Tıp Fakültesi Dergisi

Characterisation of probiotic properties of lactic acid bacteria isolated from vaginal microflora of healty Turkish women

Link      KIRAY, E., Kariptaş, E., SONGUR-DAĞLI, S. (2020) "Characterisation of probiotic properties of lactic acid bacteria isolated from vaginal microflora of healty Turkish women", FRESENIUS ENVIRONMENTAL BULLETIN, 29 (6) pp. 4240-4252 [SCI] Link     " data-bs-content-id="YazarBilgi-21319"> KIRAY, E., Kariptaş, E., SONGUR-DAĞLI, S. (2020) "Characterisation of probiotic properties of lactic acid bacteria isolated from vaginal microflora of healty Turkish women", FRESENIUS ENVIRONMENTAL BULLETIN, 29 (6) pp. 4240-4252 [SCI] Link      KIRAY, E., Kariptaş, E., SONGUR-DAĞLI, S. (2020) "Characterisation of probiotic properties of lactic acid bacteria isolated from vaginal microflora of healty Turkish women", FRESENIUS ENVIRONMENTAL BULLETIN, 29 (6) pp. 4240-4252 [SCI] Link     
2020 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
FRESENIUS ENVIRONMENTAL BULLETIN

Comparison of cervico vaginal colonization among sexually active women by intrauterine device use

Link DOI        SONGUR-DAĞLI, S., Demir, T. (2015) "Comparison of cervico vaginal colonization among sexually active women by intrauterine device use", JOURNAL OF INFECTION IN DEVELOPING COUNTRIES, 9 (9) pp. 930-935 [SCI Expanded] Link DOI       " data-bs-content-id="YazarBilgi-21324"> SONGUR-DAĞLI, S., Demir, T. (2015) "Comparison of cervico vaginal colonization among sexually active women by intrauterine device use", JOURNAL OF INFECTION IN DEVELOPING COUNTRIES, 9 (9) pp. 930-935 [SCI Expanded] Link DOI        SONGUR-DAĞLI, S., Demir, T. (2015) "Comparison of cervico vaginal colonization among sexually active women by intrauterine device use", JOURNAL OF INFECTION IN DEVELOPING COUNTRIES, 9 (9) pp. 930-935 [SCI Expanded] Link DOI       
2015 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
JOURNAL OF INFECTION IN DEVELOPING COUNTRIES

Primary Cesarean Indications of Multiparous Parturients

SONGUR-DAĞLI, S., Cantürk, F.K. (2018) "Primary Cesarean Indications of Multiparous Parturients", Bozok Tıp Dergisi, 8 (4) pp. 69-73 [TR Dizin]   SONGUR-DAĞLI, S., Cantürk, F.K. (2018) "Primary Cesarean Indications of Multiparous Parturients", Bozok Tıp Dergisi, 8 (4) pp. 69-73 [TR Dizin]  
2018 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
Bozok Tıp Dergisi

Kirşehi̇r Bölgesi̇nde Kadin Hastaliklari Ve Doğum Poli̇kli̇ni̇ği̇ne Başvuran Kadinlarda HBsAg, Anti-HBs, Anti-HCV ve Anti-HIV Prevalansı

  SONGUR-DAĞLI, S., Demir, T. (2018) "Kirşehi̇r Bölgesi̇nde Kadin Hastaliklari Ve Doğum Poli̇kli̇ni̇ği̇ne Başvuran Kadinlarda HBsAg, Anti-HBs, Anti-HCV ve Anti-HIV Prevalansı", Ahi Evran Tıp Dergisi, 2 (1) pp. 1-4   " data-bs-content-id="YazarBilgi-21326"> SONGUR-DAĞLI, S., Demir, T. (2018) "Kirşehi̇r Bölgesi̇nde Kadin Hastaliklari Ve Doğum Poli̇kli̇ni̇ği̇ne Başvuran Kadinlarda HBsAg, Anti-HBs, Anti-HCV ve Anti-HIV Prevalansı", Ahi Evran Tıp Dergisi, 2 (1) pp. 1-4    SONGUR-DAĞLI, S., Demir, T. (2018) "Kirşehi̇r Bölgesi̇nde Kadin Hastaliklari Ve Doğum Poli̇kli̇ni̇ği̇ne Başvuran Kadinlarda HBsAg, Anti-HBs, Anti-HCV ve Anti-HIV Prevalansı", Ahi Evran Tıp Dergisi, 2 (1) pp. 1-4   
2018 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
Ahi Evran Tıp Dergisi

İkinci ve üçüncü trimester gebelerde artırılmış derinlik optik koherens tomografi ile koroid kalınlık ölçümü

Link DOI    KOCAMIŞ, Ö., SONGUR-DAĞLI, S. (2019) "İkinci ve üçüncü trimester gebelerde artırılmış derinlik optik koherens tomografi ile koroid kalınlık ölçümü", Acta Medica Alanya, (0) pp. 158-162 [TR Dizin] Link DOI   " data-bs-content-id="YazarBilgi-21327"> KOCAMIŞ, Ö., SONGUR-DAĞLI, S. (2019) "İkinci ve üçüncü trimester gebelerde artırılmış derinlik optik koherens tomografi ile koroid kalınlık ölçümü", Acta Medica Alanya, (0) pp. 158-162 [TR Dizin] Link DOI    KOCAMIŞ, Ö., SONGUR-DAĞLI, S. (2019) "İkinci ve üçüncü trimester gebelerde artırılmış derinlik optik koherens tomografi ile koroid kalınlık ölçümü", Acta Medica Alanya, (0) pp. 158-162 [TR Dizin] Link DOI   
2019 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
Acta Medica Alanya

Maternal Aneminin Perinatal Sonuçlara Etkisi

   Cantürk, F.K., SONGUR-DAĞLI, S. (2019) "Maternal Aneminin Perinatal Sonuçlara Etkisi", Jinekoloji-Obstetrik ve Neonatoloji Tıp Dergisi, 16 (1) pp. 22-26    " data-bs-content-id="YazarBilgi-21328"> Cantürk, F.K., SONGUR-DAĞLI, S. (2019) "Maternal Aneminin Perinatal Sonuçlara Etkisi", Jinekoloji-Obstetrik ve Neonatoloji Tıp Dergisi, 16 (1) pp. 22-26     Cantürk, F.K., SONGUR-DAĞLI, S. (2019) "Maternal Aneminin Perinatal Sonuçlara Etkisi", Jinekoloji-Obstetrik ve Neonatoloji Tıp Dergisi, 16 (1) pp. 22-26    
2019 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
Jinekoloji-Obstetrik ve Neonatoloji Tıp Dergisi

Adölesan gebelikler

Link DOI      SONGUR-DAĞLI, S., Cantürk, F.K. (2019) "Adölesan gebelikler", Bozok Tıp Dergisi, 9 (1) pp. 9-13 [TR Dizin] Link DOI     " data-bs-content-id="YazarBilgi-21329"> SONGUR-DAĞLI, S., Cantürk, F.K. (2019) "Adölesan gebelikler", Bozok Tıp Dergisi, 9 (1) pp. 9-13 [TR Dizin] Link DOI      SONGUR-DAĞLI, S., Cantürk, F.K. (2019) "Adölesan gebelikler", Bozok Tıp Dergisi, 9 (1) pp. 9-13 [TR Dizin] Link DOI     
2019 Özgün Makale SCI/SSCI/AHCI ESCI Scopus
Bozok Tıp Dergisi