Final answer:
The principles of Good Clinical Practice (GCP) encompass ethical treatment, informed consent, respecting patients' rights, and maintaining honesty in data collection and are detailed in GCP guidelines and regulations, not other sources like marketing brochures, equipment manuals, or personal opinions.
Step-by-step explanation:
The principles of Good Clinical Practice (GCP) are described in GCP guidelines and regulations. These guidelines are essential for ensuring the ethical treatment of subjects in clinical research, providing informed consent, respecting patients' rights, and maintaining honesty in data collection and reporting. Good Clinical Practice is a global ethical and quality standard for the design, conduct, performance, monitoring, auditing, recording, analysis, and reporting of clinical trials.