Adult 2 Cross-Sectional Studies Female 2 Follow-Up Studies 2 Humans 2 Malaysia 2 Male 2 Prognosis 2 Questionnaires 2 Risk Factors 2 adult 2 cross-sectional study 2 female 2 follow up 2 human 2 male 2 prognosis questionnaire 2 risk factor 2 Adolescent 1 Cigarette 1 General population 1 Health Behavior 1 Health Knowledge, Attitudes, Practice 1 Middle Aged 1 Occupational Exposure 1 Police 1 Risk factors 1 Road traffic police officers 1 Shisha 1