On the twin risk in autism
Glasson, Emma J.
American Journal of Human Genetics 2002 October; 71(4): 941- 946
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Hansen, Michele; Kurinczuk, Jennifer J.; Bower, Carol; Webb, Sandra (2002-03-07)BACKGROUND: It is not known whether infants conceived with use of intracytoplasmic sperm injection or in vitro fertilization have a higher risk of birth defects than infants conceived naturally. METHODS: We obtained data ...