目的探讨带蒂联合包皮瓣I期修复尿道下裂的优点.方法回顾分析采用带蒂联合包皮内外板皮瓣法I期尿道下裂成形术54例的临床疗效.结果......

Quality semen production remains the main focus and objective of semen processing laboratories throughout the world. Bac......