Increasing twinning rates in Norway, 1967–2004: the influence of maternal age and assisted reproductive technology (ART)
ANNE TANDBERG, TONE BJØRGE, PER E. BØRDAHL, ROLV SKJAERVENVolume:
86
Year:
2007
Language:
english
Pages:
7
DOI:
10.1080/00016340701417323
File:
PDF, 209 KB
english, 2007