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Comment
. 2003 Jun;32(3):470-1; author reply 471.
doi: 10.1093/ije/dyg089.

Periconceptional smoking and the male to female ratio in the offspring--re-assessment of a recently proposed hypothesis

Carsten Obel, Tine Brink Henriksen, Morten Hedegaard, Bodil Hammer Bech, Kirsten Wisborg, Jørn Olsen
Comment

Periconceptional smoking and the male to female ratio in the offspring--re-assessment of a recently proposed hypothesis

Carsten Obel et al. Int J Epidemiol. 2003 Jun.
No abstract available

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