High prevalence of low bone mineral density in pre-dialysis chronic kidney disease patients: bone histomorphometric analysis - Lobão, R.; Carvalho, A. B.; Cuppari, L.; Ventura, R.; Lazaretti-Castro, M.; Jorgetti, V.; Vieira, J. G.; Cendoroglo, M.; Draibe, S. A. (Clinical Nephrology, 2004)