Table 1.

Inclusion and exclusion criteria.

Inclusion	Exclusion
Cross-sectional studies, Case–control studies, Cohort studies. Randomized control trials (RCTs)	Case study, Case series
Studies conducted within 8 South Asian Countries (Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, Sri Lanka).	No studies from outside South Asian region will be included.
Time frame will be from 2005 to January 2020.
Literatures published on English	Literatures of other languages will be excluded.
Outpatients of hospitals, clinics, physician chambers, pharmacy including self-medicated adult patients of all ages.	In-patients, Emergency patients, ICU patients.