Final answer:
According to Good Clinical Practice, advertisements for subject recruitment should be kept in the investigator's files. Good Clinical Practice provides guidelines for researchers to ensure the safety and well-being of participants, and keeping advertisements confidential is important to protect their privacy.
Step-by-step explanation:
According to Good Clinical Practice, advertisements for subject recruitment should be kept in the investigator's files.
Good Clinical Practice (GCP) is an international ethical and scientific standard for conducting clinical trials. It provides guidelines for researchers to ensure the safety, rights, and well-being of research participants.
In order to protect the privacy of research participants, advertisements for subject recruitment should be kept in the investigator's files. This helps maintain confidentiality and ensures that sensitive information is not shared with unauthorized individuals.