title: Factors that influence age of menarche in girls in Santiago, Chile.
mesh_terms: D000273:Adipose Tissue; D000293:Adolescent; D000367:Age Factors; D002648:Child; D002677:Chile; D005260:Female; D005838:Genotype; D006801:Humans; D007180:Incisor; D008572:Menarche; D012494:Sampling Studies; D012885:Skinfold Thickness; D012959:Socioeconomic Factors