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1 From the Department of Obstetrics and Gynecology, Massachusetts General Hospital (M.F.G.), Boston University (R.B.D.), and the Department of Biostatistics, Harvard T.H. Chan School of Public Health, and the Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute (D.H.) - all in Boston.
1 From the Department of Obstetrics and Gynecology, Massachusetts General Hospital (M.F.G.), Boston University (R.B.D.), and the Department of Biostatistics, Harvard T.H. Chan School of Public Health, and the Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute (D.H.) - all in Boston.