SAPRA UMESH KUMAR There are many ethical issues. Like Edward Owusu I think it would be more easy to come with recommendations if you are more specific.
The ethical issues in this research project are regulated by the Scientific Ethics Committee for Medical Research. I believe that most universities do not authorize research on humans until they have received the written consent of these volunteers.
SAPRA UMESH KUMAR This is well thought through example: https://www.etikkom.no/globalassets/documents/english-publications/60127_fek_guidelines_nesh_digital_corr.pdf