Why Am I Ill? Beliefs in Supernatural and Natural Causes of Ill Health at the Time of Diagnostic Workup of Patients With Esophageal Cancer in Tanzania.

The results underscore the need for increased community awareness of biomedical causes of ill health and patient-based participatory research to inform prevention programs. The results also highlight the importance of building health systems that support a series of health-seeking behaviors that acknowledge both biomedical and local traditional healing belief systems.