Sexual Function Is an Indicator of Central Arterial Stiffness and Arterial Stiffness Gradient in Japanese Adult Men oleh Hiroshi Kumagai, Toru Yoshikawa, Kanae Myoenzono, Keisei Kosaki, Nobuhiko Akazawa, Zempo‐Miyaki Asako, Takehiko Tsujimoto, Tetsuhiro Kidokoro, Kiyoji Tanaka, Seiji Maeda