共 19 条
[1]
DOWNS-SYNDROME - RECENT TRENDS IN THE UNITED-STATES
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1981, 246 (07)
:758-760
[2]
ALLAN LD, 1984, BRIT HEART J, V52, P542
[8]
CUCKLE HS, 1984, LANCET, V1, P926