title: Premature thelarche in Puerto Rico: a search for environmental estrogenic contamination.
mesh_terms: D000293:Adolescent; D001940:Breast / Q000254:growth & development*; D004785:Environmental Pollutants / Q000009:adverse effects* / Q000032:analysis; D004967:Estrogens / Q000009:adverse effects* / Q000032:analysis; D005260:Female; D005504:Food Analysis; D006801:Humans; D011629:Puberty, Precocious / Q000209:etiology*; D011647:Puerto Rico
chemical_list: D004785:Environmental Pollutants; D004967:Estrogens