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Decreased serum pyridoxal levels in schizophrenia: meta-analysis and Mendelian randomization analysis
Yukiko Tomioka, Shusuke Numata, Makoto Kinoshita, Hidehiro Umehara, Shin-ya Watanabe, Masahito Nakataki, Yoshimi Iwayama, Tomoko Toyota, Masashi Ikeda, Hidenaga Yamamori, Shinji Shimodera, Atsushi Tajima, Ryota Hashimoto, Nakao Iwata, Takeo Yoshikawa and Tetsuro Ohmori