1. In-vitro fertilisation and risk of multiple pregnancy
Ozkan Ozturk, Allan Templeton 
The Lancet 
Volume 360, Issue 9330, (August 2002)
DOI: /S (02)
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2. Correlation coefficient between proportion of elective two-embryo transfer cycles and triplet birth rates at different post-hoc cut-off points of minimum livebirths per year per clinic
The Lancet  , DOI: ( /S (02) )
Copyright © 2002 Elsevier Ltd Terms and Conditions