[Secular trend of menarcheal age in Spanish adolescents].
Soriano Guillén
Leandro
L
Blanco Rodríguez
Miriam
M
Cortés Martín
Mercedes
M
Martínez Martín
Carmela
C
D000293:Adolescent; D000367:Age Factors; D002648:Child; D005260:Female; D006801:Humans; D008572:Menarche; D009765:Obesity / Q000503:physiopathology*; D011446:Prospective Studies; D013030:Spain