1. Unit of PharmacoEpidemiology & PharmacoEconomics (PE2); Department of Pharmacy; University of Groningen; Groningen Netherlands
2. Planning, Information & Research Department; Coordination Department; Medical Services Department; National Blood Service Zimbabwe
3. Department of Community Medicine; College of Health Sciences; University of Zimbabwe; Harare Zimbabwe
4. Department of Clinical Pharmacy and Toxicology; Martini Hospital; Groningen Netherlands