Efficacy of caffeine citrate for apnea prevention and treatment in very low birth weight infants at different starting time
ZHAO Zi-Chong, JIANG Qi, LIN Mei-Fang, CHEN Ye, WEN Ge-Sheng
journal1 . 2017, (12): 1284 -1287 .  DOI: 10.11852/zgetbjzz2017-25-12-27