Forrest R. Persing of Snyderstown, a recent graduate of the Physician Assistant Program, spent a week in Guatemala this summer as part of his final senior internship. Persing was part of a 55-member team that included one physician assistant, several nurses, a pharmacist, medical assistants and about 14 youths, as well as translators and bus drivers. The group treated 1,674 patients during four days of clinics in rural parts of the country.