About the Authors
- Nicholas N. A. Kyei
- Public Health Division, 37 Military Hospital, Accra, Ghana
- Oona M. R. Campbell
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Sabine Gabrysch
- Epidemiology and Biostatistics Unit, Institute of Public Health, University of Heidelberg, Heidelberg, Germany
The authors have declared that no competing interests exist.
Had idea for study: OC. Identified datasets and cleaned datasets: SG. Analyzed the data: NK SG. Wrote the paper: NK SG OC.