Yimei Li

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We conducted a case-control study of sporadic bilateral retinoblastoma, which results from a new germline RB1 mutation, to investigate the role of parents' diet before their child's conception. Parents of 206 cases from nine North American institutions and 269 controls participated; of these, fathers of 184 cases and 223 controls and mothers of 204 cases(More)
We conducted a case–control study to examine the role of parents’ nutrient intake before their child’s conception in the child’s risk of sporadic bilateral retinoblastoma, which results from a new germline RB1 mutation. Parents of 206 cases from 9 North American institutions and 269 friend and relative controls participated; fathers of 182 cases and 223(More)
This cross-sectional study used Geographic Information System methods to compare sociodemographic and clinical characteristics of children enrolled and not enrolled in a primary care network to determine the suitability of the network to estimate population-based disease rates. We validated the network surveillance system by comparing invasive pneumococcal(More)
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