1. Hypertension in Africa Research Team (HART); North-West University; Potchefstroom South Africa
2. MRC Research Unit for Hypertension and Cardiovascular Disease; North-West University; Potchefstroom South Africa
3. Occupational Hygiene and Health Research Initiative (OHHRI); North-West University; Potchefstroom South Africa
4. Africa Unit for Transdisciplinary Health Research (AUTHeR); North-West University; Potchefstroom South Africa