Lourdes Miracles

Mark Shea has a post with links to the medical review process used by (real) doctors in Lourdes, France to verify whether or not a cure which occurs there is a miracle. There's also a link to the documented, medically-verified miracles.

I'd also recommend Fr. Stanley Jaki's article about Dr. Alexis Carrel, the 1912 Nobel prize winner whose eye-witness of a miracle led to his conversion from atheism to Catholicism.