Leisure time physical exercise during pregnancy and the risk of miscarriage: a study within the Danish National Birth Cohort.
Madsen, M a; Jorgensen, T a; Jensen, M L a; Juhl, M a; Olsen, J b; Andersen, P K c; Nybo Andersen, A-M a
BJOG: An International Journal of Obstetrics & Gynaecology.
114(11):1419-1426, November 2007.
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