1-There is no information of period of study given by the authors
- The authors give no information about the period of the study
2- No explanation of what do PACT and SPA in the methodology section mean
-No explanation is given about the meanings of PACT and SPA
3- It is hard to justify the external validity of the study since there were no sufficient information on the response rate and different in response rate between groups were reported which might affect the conclusion of the intervention effect and the study results.
-3- It is hard to justify the external validity of the study since there was insufficient information on the response rate and differences in response rate between groups were reported which might affect the conclusion of the intervention effect and the study results.
4- which are sponsored
