SIMPSON, JOE LEIGH. (1981). ANTENATAL DIAGNOSIS OF GENETIC DISORDERS.
.
CLINICAL OBSTETRICS AND GYNECOLOGY, 24(4), 1005. 10.1097/00003081-198112000-00002
SIMPSON, JOE LEIGH. (1981). ANTENATAL DIAGNOSIS OF GENETIC DISORDERS.
. CLINICAL OBSTETRICS AND GYNECOLOGY, 24(4), 1005. 10.1097/00003081-198112000-00002