Seasonal variation of twin births in Washington State. [electronic resource]
Producer: 19941208Description: 141-9 p. digitalISSN:- 0001-5660
- Adolescent
- Adult
- Birth Certificates
- Birth Rate
- Case-Control Studies
- Female
- Gestational Age
- Gonadotropins, Pituitary -- metabolism
- Humans
- Infant, Newborn
- Male
- Melatonin -- metabolism
- Middle Aged
- Models, Biological
- Odds Ratio
- Parity
- Pregnancy
- Pregnancy, Multiple -- statistics & numerical data
- Seasons
- Sunlight
- Superovulation -- radiation effects
- Twins -- statistics & numerical data
- Twins, Dizygotic -- statistics & numerical data
- Twins, Monozygotic -- statistics & numerical data
- Washington -- epidemiology
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Publication Type: Journal Article
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