We sometimes face difficulties in finding accessible data sources. Here are some data sources that are available freely for research:
1. Demographic and Health Survey (DHS) data (https://dhsprogram.com/data/available-datasets.cfm)
2. Global Tobacco Surveillance System Data (GTSSData) (https://nccd.cdc.gov/GTSSDataSurveyResources/Ancillary/DataReports.aspx?CAID=2)
3. Multiple Indicator Cluster Surveys (MICS) data by Unicef (https://mics.unicef.org/surveys)