Hi Bernie-Virdzek, It appears that we never answered your question about your father. I hope that he is doing well. I hope you were able to find answers thru a medical professional. We are sorry that we did not respond. Sometimes messages fall thru the system. We are a caring community of those with PD and their care partners. Please let us know how you are doing and if there is anything we can help you with. Best regards, Suzanne Troy, ParkinsonsDisease.net team member