Vertebral bone density in children: effect of puberty. - Gilsanz,V.; Gibbens,D.T.; Roe,T.F.; Carlson,M.; Senac,M.O.; Boechat,M.I.; Huang,H.K.; Schulz,E.E.; Libanati,C.R.; Cann,C.C. (Radiology, 1988)