Flannagan Kerry S J, Mumford Sunni L
Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland.
Fertil Steril. 2020 Dec;114(6):1172-1173. doi: 10.1016/j.fertnstert.2020.10.057.