1. Immpact, University of Aberdeen, Health Sciences Building, Foresterhill, Aberdeen, AB25 2ZD, Scotland, UK
2. Department of Public Health Sciences, Karolinska Institutet, Tomtebodavägen 18 A, 171 77 Stockholm, Sweden
3. Partnership for Transforming Health Systems II (PATHS2), Abuja, Nigeria
4. Partnership for Transforming Health Systems II (PATHS2), Lagos, Nigeria
5. Partnership for Transforming Health Systems II (PATHS2), Enugu, Nigeria