I did research it. Notice the “highly qualified doctors” are all Catholic
It’s a two-step process. To even be considered, a potentially miraculous cure must be instantaneous or sudden, complete and permanent, and without apparent scientific explanation. When reviewing such cures, the Congregation for the Causes of Saints, the Vatican office that oversees sainthood applications, first turns potential miracles over to the Consulta Medica. This board, established by the Vatican in the mid-1900s, is made up of about 100 renowned Italian (and Catholic) physicians. Traditionally, a panel of five Consulta Medicadoctors will review the putative miracle, examining any available CT scans, X-rays, and medical reports. At least three of the five must agree that the hand of God has prevailed where science faltered.
Following a thumbs-up from the Consulta Medica, a panel of cardinals and priests will then convene to determine whether the cure came as a result of praying to the saintly candidate. If evidence of healing prayer exists, the miracle is approved, and the panel issues a declaration saying so.