Testis spectroscopy may predict sperm retrieval rate in men with non-obstructive azoospermia undergoing micro-TESE: A pilot study Journal title: Journal of the Turkish-German Gynecological Association Authors: Önder Çelik, Şafak Hatırnaz, Aynur Erşahin, Alper Başbuğ, Gonca Yetkin Yıldırım, Vahit Özener, Nesli... Subject(s): Medicine, Gynecology