Spatial–temporal distribution of preterm birth in China, 1990–2020: A systematic review and modelling analysis. - Hu, Wei‐Hua; Gao, Xin‐Yuan; Li, Xiu‐Xiu; Lin, Qing‐Mei; He, Li‐Ping; Lai, Ying‐Si; Hao, Yuan‐Tao (Paediatric & Perinatal Epidemiology, 2024)