Prof. Dr. Cemalettin Ertekin Prof. Dr. Korhan Tavilošlu Obezite Cerrahisi Ulusal Travma ve Acil Cerrahi Derneši Procto.com Yoursurgery.com Laparoskopi.com Surgerychannel.com Türk-Medline Medscape Pubmed Johns Hopkinks Journal of Trauma
