How many eggs?

doi:10.1136/bmj.329.7461.302

BMJ 2004;329:302-303 (7 August), doi:10.1136/bmj.329.7461.302

Editorial

How many eggs?

Ideally, one egg and one offspring

The first 150 words of the full text of this article appear below.

For some, the most crucial part of the question of "How manyeggs?" is how many eggs one should put in the same nest. Forothers, it is how many can one get out of the same nest? Translatenest into incubator, and the study of Pinborg et al in thisissue seems to address both.¹

This is the second in a series by Pinborg et al (p 311) on theoutcome of 3393 liveborn twins after in vitro fertilisation(IVF) with or without intracytoplasmatic sperm injection (ICSI)compared with 10 239 liveborn control twins in Denmark between1995 and 2000.^1
2 The first was based on 3438 twins born afterIVF and ICSI and 10 362 naturally conceived twins, but dealtwith the neonatal outcome of the 3393 and 10 239 liveborns amongthem.² The current study deals with the same 13 632 (that is3393 IVF and . . . [Full text of this article]

Marc J N C Keirse, professor

Department of Obstetrics, Gynaecology and Reproductive Medicine, Flinders University and Flinders Medical Centre, Adelaide, SA 5042, Australia

Frans M Helmerhorst, associate professor

(f.m.helmerhorst@lumc.nl) Department of Obstetrics, Gynaecology and Reproductive Medicine, Leiden University Medical Center, NL-2300RC Leiden, Netherlands

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Neurological sequelae in twins born after assisted conception: controlled national cohort study: Anja Pinborg, Anne Loft, Lone Schmidt, Gorm Greisen, Steen Rasmussen, and Anders Nyboe Andersen
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