Dr. Jeffrey Shaw is an Ohio Board Certified doctor now working with CarePath, in Port Clinton, to review the medical records of local patients and help them to obtain a Medical Marijuana Card. (Photo by D’Arcy Egan) BY D’ARCY EGAN A Medical Marijuana Referral Clinic is open in Port Clinton, giving potential patients the chance to have a certified doctor check their conditions and determine if they could be helped by that form of treatment, and to acquire the needed Ohio Medical Marijuana Card.