Twin pregnancy in a tertiary referral unit--analysis of trends in the 1990s.
O'Connell
M P
MP
National Maternity Hospital, Holles Street, Dublin 2, Republic of Ireland.
Deo
P
P
Lindow
S W
SW
D036861:Delivery, Obstetric / Q000379:methods; D005260:Female; D005865:Gestational Age; D006801:Humans; D008423:Maternal Age; D010298:Parity; D011247:Pregnancy; D015995:Prevalence; D027724:Reproductive Techniques, Assisted / Q000706:statistics & numerical data* / Q000639:trends; D014427:Twins / Q000706:statistics & numerical data*; D006113:United Kingdom / Q000453:epidemiology