Influence of estrogen deficiency and tibolone therapy on trabecular and cortical bone evaluated by computed radiography system in rats 1 Influência da deficiência estrogênica e do tratamento com tibolona no osso trabecular e cortical avaliada pelo sistema de radiografia computadorizada em ratas

Fellow Master degree, Postgraduate Program in Pathology, UFF, Niteroi-RJ, Brazil. Provided guidelines, collection of study informations, manuscript writing. Fellow Master degree, Postgraduate Program in Medical Sciences, UFF, Niteroi-RJ, Brazil. Acquisition and interpretation of data and technical procedures. Associate Professor, Nuclear Engineering Program, Federal University of Rio de Janeiro (UFRJ), Brazil. Acquisition and interpretation of data, technical procedures. IV Fellow PhD degree, Postgraduate Program in Nuclear Engineering, UFRJ, Rio de Janeiro-RJ, Brazil. Acquisition and interpretation of data, technical procedures.