Libros de Medicina en PDF Global Diagnosis Global Diagnosis is a story of mentorship and friendship. We fi rst met when Jeff was a dental student and Bill was a full-time faculty member, so our relationship started as a student/mentor relationship. Jeff completed a 2-year general practice residency and returned to full-time private practice in San Antonio. After a few years in practice, Jeff urged Bill to leave academics and to join Jeff ’s practice. That is when our friendship began. We practiced together for several years, and professionally it was a very rich time for both of us.