Berookhim, BM; Schlegel, PN (February 2014). "Azoospermia due to spermatogenic failure". The Urologic Clinics of North America. 41 (1): 97–113. doi:10.1016/j.ucl.2013.08.004. PMID24286770.
Berookhim, BM; Schlegel, PN (February 2014). "Azoospermia due to spermatogenic failure". The Urologic Clinics of North America. 41 (1): 97–113. doi:10.1016/j.ucl.2013.08.004. PMID24286770.