Significance of oligohydramnios in preterm small-for-gestational-age infants for outcome at 18 months of age. - Sasahara J; Ishii K; Umehara N; Oba M; Kiyoshi K; Murakoshi T; Tanemoto T; Ishikawa H; Ichizuka K; Yoshida A; Tanaka K; Ozawa K; et al. (The journal of obstetrics and gynaecology research, 2016)