What documents do I need to apply for a Soft Power Medical visa in Thailand?

Hey everyone, so need a bit of advice here, I'm about to apply for soft power medical, I went to Chiang Mai hospital and started a treatment with them for my skin condition, also did some blood tests , etc. I have so far from them receipts for payments made to consultations, tests and medication, statement document indicating my name and passport number along with condition , treatment to be taken , duration of treatment and required follow ups, and appointment slip paper indicating that I need check ups every month for 12 months. Do I need anything else from them, also the documents are signed but not stamped. What do you think ?