Sáenz, C A Premature thelarche and ovarian cyst probably secondary to estrogen contamination. [electronic resource] - Boletin de la Asociacion Medica de Puerto Rico Feb 1982 - 16-9 p. digital Publication Type: Journal Article ISSN: 0004-4849 Subjects--Topical Terms: Animal FeedAnimalsCattleChildChild, PreschoolDisease SusceptibilityEstrogens--adverse effectsFemaleFood AdditivesFood ContaminationHumansInfantMeatOvarian Cysts--chemically inducedPoultryPuberty, Precocious--chemically inducedPuerto Rico