In the process of investigating the cause for sainthood of a particular person, the Church requires proof a miraculous phenomenon, usually cures of otherwise uncurable diseases.
If such instances are presented, the Magesterium thoroughly investigates the events submitted (miraculous cures). They will call on medical experts, testimony of witness, testimony of attending physicians, and all who can add credence and substance to the events.
Suggestion is to google the Vatican website and explore from there. Might try something like Pontifical council for the investigation of the cause of sainthood.
Sorry I can’t be more specific. But what you are looking for does exist.