Acknowledgments
The authors acknowledge the late Prof. Samuel Amenyi Obed and the leadership of the Department of Obstetrics and Gynecology, KBTH for administrative support, funds from University of Ghana, Office of Research, Innovation and Development (ORID); Doris Duke Charitable Foundation; Burroughs Wellcome Foundation, Phillips Family Donation; Aaron Ardoin Foundation for Sickle Cell Anemia; and J.C. Peterson, M.D. endowed chair funds from Vanderbilt University School of Medicine. We also acknowledge the donation of pulse oximetry machines by the team from Vanderbilt University Medical Center.