The School of Health Professions at UTMB will celebrate its largest graduating class, with 305 students, at its Aug. 16 commencement ceremony. Health professionals include key groups, such as laboratory personnel, physician assistants, physical, occupational and respiratory therapists, among others. They represent 60 percent of the Texas health care work force. Elizabeth Protas, vice president and dean of the School of Health Professions, will officiate the 2 p.m. graduation at Moody Gardens Convention Center.