[Pediatrics graduate medical education in Puerto Rico in the 21th Century].
Del Valle
Antonio
A
Universidad de Puerto Rico-Recinto de Ciencias Médicas, Departamento de Pediatría.
D004503:Education, Medical, Graduate; D049674:History, 21st Century; D006801:Humans; D010372:Pediatrics / Q000193:education*; D011647:Puerto Rico