Human reproduction
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Multicenter Study
Signs and symptoms associated with early pregnancy loss: findings from a population-based preconception cohort.
What is the relationship between signs and symptoms of early pregnancy and pregnancy loss <20 weeks' gestation? ⋯ This study was supported by the Intramural Research Program of the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health (contract numbers N01-HD-3-3355; N01-HD-3-3356; N01-HD-3-3358). The authors have no conflict of interest to declare.