La Ceiba, Honduras AT a modest clinic down a dirt road, there are rocking chairs on the front porch and a hyperbaric chamber in the front room where Dr. Elmer Mejía treats deep-sea lobster divers who arrive paralyzed but walk out days later.
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Courtly in manner and crisply dressed despite the tropical heat, Dr. Mejía could pass for an accountant in a suburban office park. But his appearance masks a fierce sense of mission. He calls what is happening to his impoverished patients…

