[Risk factors for bronchopulmonary dysplasia in twin preterm infants: a multicenter study]. - Fan YW; Zhang YJ; Wen HM; Yan H; Shen W; Ding YQ; Long YF; Zhang ZG; Li GF; Jiang H; Rao HP; Qiu JW; et al. (Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics, 2024)