Interpregnancy intervals in the United States: Data from the birth certificate and the National Survey of Family Growth (National Vital Statistics Reports, Vol. 64 No. 3). Hyattsville, MD: Centers for Disease Control and Prevention, National Center for Health Statistics. Google Scholar Cox, D....
Interpregnancy intervals in the United States: Data from the birth certificate and the National Survey of Family Growth (National Vital Statistics Reports, Vol. 64 No. 3). Hyattsville, MD: Centers for Disease Control and Prevention, National Center for Health Statistics. Cox, ...
The Turfloop Research Ethics Committee (TREC) of the University of Limpopo granted the approval, with the clearance certificate number TREC/117/2017: PG. All participants in this study signed a written informed consent form. Participants were informed of their autonomy to leave the study at any ...