Limitations of the study:
1- Survey taking fatigue; due to the fact that my questionnaire is long.
2- Due to the Covid-19 pandemic, a lot of people have been practicing social distancing; therefor I couldn’t interview candidates face to face.
3- In contrast, people are also being more vigilant about their health; due to the pandemic, and therefore it is also possible that the prevalence estimated is an overestimation.
4-Some questions were not easily understood by the participants.
5-Some candidates didn’t fill the whole questionnaire.