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