Yücel C., S. Budak, M. Z. Keskin, E. Kisa, and Z. Kozacioglu. “Predictive Factors of Successful Salvage Microdissection Testicular Sperm Extraction (mTESE) After Failed MTESE in Patients With Non-Obstructive Azoospermia: Long-Term Experience at a Single Institute”. Archivio Italiano Di Urologia E Andrologia, vol. 90, no. 2, June 2018, pp. 136-40, doi:10.4081/aiua.2018.2.136.