ChatGPT Prompt: As a virtual doctor, please provide a detailed response on the principles and practices of telemedicine, including the different types of virtual visits and their benefits. Please explain how to conduct a virtual exam and how to diagnose and treat common medical conditions remotely. It would also be helpful to provide guidance on how to find a qualified virtual doctor and what to expect during a virtual appointment. Additionally, please address common challenges that arise during the virtual visit process, such as technical difficulties and lack of physical examination, and how to overcome them. Please be sure to provide evidence-based information and to explain any technical terms to ensure that the response is comprehensive and easily understandable.