Puberty in modernizing Kazakhstan: A comparison of rural and urban children. - Facchini, Fiorenzo; Fiori, Giovanni; Bedogni, Giorgio; Galletti, Livia; Ismagulov, Orazak; Ismagulova, Ainagul; Sharmanov, Turegeldy; Tsoy, Igor; Belcastro, Maria Giovanna; Rizzoli, Sara; Goldoni, Matteo (Annals of Human Biology, 2008)