[The age of menarche in a population of Northern Italy].
Petri
A
A
Clinica Pediatrica, Dipartimento di Scienze Mediche, Università del Piemonte Orientale, Novara, Italy.
Castellino
N
N
Lupo
E
E
Rapa
A
A
Bellone
S
S
Strigini
L
L
Vercellotti
A
A
Zavallone
A
A
Bona
G
G
D000293:Adolescent; D000367:Age Factors; D002648:Child; D005260:Female; D006801:Humans; D007558:Italy; D008572:Menarche