Who was Ugraditya's teacher, where was the Kalyanakaraka composed, and which teachers does it name for the limbs of Ayurveda?

Detailed answer

Verse 86 adds that Samantabhadra expounded all eight limbs at length and that Ugraditya presents them in brief. A footnote traces eight-limbed Ayurveda to the Pranavada Purva within the Drishtivada, the twelfth limb of the Jain canon, calling it the root text on which all teachers drew.