Large-scale questionnaire survey of erectile dysfunction drugs in Japanese men Koichi NagaoHideyuki KobayashiNobuhisa Ishii Original Article Pages: 105 - 114
Retrograde vasal sperm aspiration in anejaculatory patients with spinal cord injury Hatsuki HibiTadashi OhoriYoshimasa Asada Original Article Pages: 115 - 118
Successful pregnancy after artificial insemination in a case of human seminal plasma allergy Aiko MakinoTakeshi SatoYoichi Shintani Original Article Pages: 119 - 122
Effect of amino acids and dipeptides on the acrosome reaction and accumulation of ammonia in porcine spermatozoa K. M. A. TareqMd Sharoare HossainHirotada Tsujii Original Article Pages: 123 - 131
The present status of artificial oocyte activation in assisted reproductive technology Kaoru YanagidaYoko FujikuraHaruo Katayose Review Article Pages: 133 - 142
Increase in the concentration of cytosolic-free calcium induced by human follicular fluid was decreased in single human spermatozoon with abnormal morphology Yasufumi ShimizuReiko MinaguchiToshiro Kubota Original Article Pages: 143 - 149