I. The role of research ethics committees in observational studies: epidemiological registries, case reports, interviews, and retrospective studies
Rev. invest. clín; 71 (3), 2019
Abstract It is often unclear to the clinical investigator whether observational studies should be submitted to a research ethics committee (REC), mostly because, in general, no active or additional interventions are performed. Moreover, obtaining an informed consent under these circumstances may be chall...