Answer:
Must obtain the consent of the subjects after informing them of the procedures.
Explanation:
Informed consent is a voluntary agreement between the participants and the researcher. We can not say it is a signed consent but it a process in which the subject has to understand the researcher and its benefits and risk factors. Informed consent is very important for the participants when they enrolled. This can be obtained for all types of participants such as therapeutic, diagnostic, intervention, social-behavioral studies and research conducted domestically on abroad. It does mean that the researcher must have to inform the participants about his rights and wrongs. The subject in the study are willing to participate, the researcher could not pressure the subjects. The vulnerable population gets extra care. the researcher has to take confidentiality with the participant, not to disclose anyone.