My dad had ALS, we lost him about 17 years ago. When he was getting treatment, there was a good doctor at Hahnemann but I do know that person isn’t there anymore or possibly died? But I remember that hospital having a great department that was researching ALS. That hospital folded into Drexel I think? Might want to check them out if Penn doesn’t work out. Good luck, ALS sucks ass so I hope your parent doesn’t have it