researcher means a medical doctor o

researcher means a medical doctor or dentist or, if it is question of medical research or research pertaining to nursing science or health science other than clinical drug trial, also any other person with adequate professional and scientific qualifications who is in charge of carrying out a clinical trial at a research site; if a trial is carried out at a research site by a research group, researcher refers to the medical doctor, dentist or another person acting as the leader of the group; (794/2010)