1: In summary, there(the) literature reviews reveal 6 (six)gaps that need to be addressed. Firstly, no study has been done to evaluate how pharmaceutical advertisements are controlled worldwide. It is important to thoroughly understand how pharmaceutical advertisements are controlled in every country given the different(difference) in (the) countries’ socio-economic situation(s) and types of the health systems.
2: Fifthly, no systematic review has been done to(on) studies on pharmaceutical advertisements in medical journals. This issue is important to identify gaps for future research.