Dr. Rotchford has been authorizing medical cannabis for almost 20 years. He has published a book on the subject: Medical Cannabis - Initial Medical Consultation
https://www.amazon.com/Medical-Cannabis-Initial-Consultation/dp/1717018122/ref=sr_1_1? child=1&keywords=Rotchford+Medical+cannabis&qid=1611190404&sr=8-1>
Base on history and exam Dr. Rotchford reviews the risks and benefits of using medical cannabis and evaluates patient's for being suitable candidates under Washington State law.