References | % of obstructive azoospermia |
Rashed et al. (2008) | 24 |
Wong et al. (1973) | 25 |
Colgan et al. (1980) | 20 |
Brannen and Roth (1979) | 35 |
Al-Rayess et al. (2000) | 31 |
Thomas J (1990) | 38 |
Meinhard et al. (1973) | 5 |
Haddad et al. (2004) | 11.2 |
Present study (2015) | 17.9 |