[Secular trend of the puberal age in a Northern Italy population].
Castellino
N
N
Clinica Pediatrica, Dipartimento Scienze Mediche, Università del Piemonte Orientale, Novara, Italy.
Lupo
E
E
Petri
A
A
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; D008297:Male; D009747:Nutritional Physiological Phenomena; D011627:Puberty; D011628:Puberty, Delayed / Q000175:diagnosis; D011629:Puberty, Precocious / Q000175:diagnosis; D012959:Socioeconomic Factors