Gene variants in PPARD and PPARGC1A are associated with timing of natural menopause in the general Japanese population

Hirokazu Uemura, Mineyoshi Hiyoshi, Kokichi Arisawa, Miwa Yamaguchi, Mariko Naito, Sayo Kawai, Nobuyuki Hamajima, Keitaro Matsuo, Naoto Taguchi, Naoyuki Takashima, Sadao Suzuki, Kazuyo Hirasada, Haruo Mikami, Keizo Ohnaka, Aya Yoshikawa, Michiaki Kubo, Hideo Tanaka