Vázquez-Quintana, E Truncated opportunities no-place for serendipity. [electronic resource] - Boletin de la Asociacion Medica de Puerto Rico Jul 1990 - 314-5 p. digital Publication Type: Historical Article; Journal Article ISSN: 0004-4849 Subjects--Topical Terms: AnimalsDiffusion of InnovationDogsGeneral Surgery--historyHistory, 20th CenturyHumansPuerto RicoResearch--historyResearch Support as TopicSchools, Medical--history