Association Between Digit Ratio and Postoperative Nausea and Vomiting: A Single‐Center Prospective Cohort Study. - Chiba, Yoshihiko; Iizuka, Yusuke; Ohama, Shinnosuke; Chiba, Kyoko; Yoshinaga, Koichi; Takahashi, Kyosuke; Sanui, Masamitsu; Sengupta, Srijoni (Anesthesiology Research & Practice, 2026)