ELIAS, S, GERBIE, AB, SIMPSON, JL et al. (1980). GENETIC AMNIOCENTESIS IN TWIN GESTATIONS
. AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY, 138(2), 169-174. 10.1016/0002-9378(80)90029-0
ELIAS, S, GERBIE, AB, SIMPSON, JL et al. (1980). GENETIC AMNIOCENTESIS IN TWIN GESTATIONS
. AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY, 138(2), 169-174. 10.1016/0002-9378(80)90029-0