?:authorAffiliation
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[\'Teaching and Research Department, Central South Hospital, Mexican Petroleum, Mexico City, Mexico. jesusreynaf@gmail.com.\', \'Occupational Health Service, Central South Hospital, Mexican Petroleum, Mexico City, Mexico.\', \'Teaching and Research Department, Central South Hospital, Mexican Petroleum, Mexico City, Mexico.\', \'Teaching and Research Department, Regional Hospital of Salamanca, Petroleos Mexicanos, Guanajuato, Mexico.\', \'Infectious Disease Research Center, Public Health Institute. Cuernavaca, Morelos, México.\', \'Internal Medicine Department, Central South Hospital, Mexican Petroleum, Mexico City, Mexico.\']
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