Table 1.

PICOS definitions.

PICOS	Definition
Population (P)	Pharmacy students.
Intervention (I)	Any study that collects pharmacy students’ opinion, satisfaction, perception, or attitude on e-learning during COVID-19 pandemic.
Comparison (C)	Both types of study, i.e., with or without a comparison/control group were included.
Outcome (O)	Pharmacy students’ perceptions, satisfaction, attitude and/or opinions on e-learning during the COVID-19 pandemic.
Study design (S)	Any study (quantitative or qualitative) involving the collection of pharmacy students’ opinion or satisfaction or perception or attitude on e-learning during the COVID-19 pandemic.