Population Based Study of Rates of Multiple Pregnancies in Denmark, 1980-94
BMJ: British Medical Journal 1997 March 15; 314(7083): 775- 779
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Westergaard, Tine; Wohlfahrt, Jan; Aaby, Peter; Melbye, Mads (1997-03-15)OBJECTIVE: To study trends in multiple pregnancies not explained by changes in maternal age and parity patterns. DESIGN: Trends in population based figures for multiple pregnancies in Denmark studied from complete national ...
Madsen, Kreesten Meldgaard; Hviid, Anders; Vestergaard, Mogens; Schendel, Diana; Wohlfahrt, Jan; Thorsen, Poul; Olsen, Jorn; Melbye, Mads (2002-11-07)