TY  - GEN
AU  - Dionne,C E
AU  - Söderström,M
AU  - Schwartz,S M
TI  - Seasonal variation of twin births in Washington State
SN  - 0001-5660
PY  - 1994///1208
KW  - Adolescent
KW  - Adult
KW  - Birth Certificates
KW  - Birth Rate
KW  - Case-Control Studies
KW  - Female
KW  - Gestational Age
KW  - Gonadotropins, Pituitary
KW  - metabolism
KW  - Humans
KW  - Infant, Newborn
KW  - Male
KW  - Melatonin
KW  - Middle Aged
KW  - Models, Biological
KW  - Odds Ratio
KW  - Parity
KW  - Pregnancy
KW  - Pregnancy, Multiple
KW  - statistics & numerical data
KW  - Seasons
KW  - Sunlight
KW  - Superovulation
KW  - radiation effects
KW  - Twins
KW  - Twins, Dizygotic
KW  - Twins, Monozygotic
KW  - Washington
KW  - epidemiology
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1017/s0001566000002038
ER  -