WHAT IS CONTROL OF FERTILITY IN MEN
WHAT DOES IT CONTROL [1] QUANTITATIVE CHARACTERISTICS OF SPERM [2] QUALITATIVE CHARACTERISTICS OF SPERM [3] WELDING SPERM [4] EXISTENCE OF WHITEV CLOOD CELLS
WHEN IS [1] INVESTIGATE FERTILITY [2] CRYOPRESSERVATION [FOR FUTURE USE] [3] ASSISTED REPRODUCTION [4] EFFECT OF POSTOPERATIVE TESTICULAR OPERATION [5] LIGATION OF THE VAS DEFERENS