Improvement of seminal quality and sexual function of men with oligoasthenoteratozoospermia syndrome following supplementation with L-arginine and Pycnogenol® by Yoshitomo Kobori, Keisuke Suzuki, Toshiyuki Iwahata, Takeshi Shin, Yuko Sadaoka, Ryo Sato, Kojiro Nishio, Hiroshi Yagi, Gaku Arai, Shigehiro Soh, Hiroshi Okada, Jeffry Michael Strong, Peter Rohdewald

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