It was a way for Dr. Jose Loera to give something back to Mexico — practice medicine under the supervision of a licensed physician in his native Chihuahua as part of the country's servicio social program.

"The purpose of the servicio social was to return or pay back the country for our medical education, which was literally free," said Loera, a 1970 graduate of Mexico City's Universidad Nacional Autónoma de Mexico. "The other (purpose) was that physicians, after 12 months of supervised practice, had a tendency to stay in the place of assigned servicio social. I stayed another ...

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