“…They include factors such as patients' beliefs and attitudes towards medication taking, attitudes and support of their caregivers, perceived efficacy and side effects of treatment, patients' knowledge about the illness, its causes and treatment, barriers to compliance/adherence such as costs of treatment or inadequate access, the clinician-patient relationship, patients' quality of life, their satisfaction with and acceptability of treatment, and many others. Different theoretical approaches incorporating these factors and the mechanisms underlying them have been utilized to understand medication-taking behaviour [1,4,6,7,9,21,22,34,38,39,[41][42][43][44][45][46][47][48] . Examples of these include the health-belief model, the social-cognitive theory, the theory of planned behaviour (and its precursor, the theory of reasoned action), the selfregulation theory, and the protection-motivation theory.…”