title: Periconceptional smoking and the male to female ratio in the offspring--re-assessment of a recently proposed hypothesis.
authors.forename: Carsten
authors.initials: C
authors.lastname: Obel
authors.forename: Tine Brink
authors.initials: TB
authors.lastname: Henriksen
authors.forename: Morten
authors.initials: M
authors.lastname: Hedegaard
authors.forename: Bodil Hammer
authors.initials: BH
authors.lastname: Bech
authors.forename: Kirsten
authors.initials: K
authors.lastname: Wisborg
authors.forename: Jørn
authors.initials: J
authors.lastname: Olsen
mesh_terms: D000328:Adult; D015331:Cohort Studies; D003718:Denmark / Q000453:epidemiology; D005260:Female; D005306:Fertilization; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D010290:Parents; D011247:Pregnancy; D012744:Sex Ratio; D012907:Smoking / Q000009:adverse effects*