TY - JOUR T1 - Ambivalent implications of health care information systems: a study in the Brazilian public health care system JO - Revista de Administração de Empresas A1 - Albuquerque, João Porto de A1 - Prado, Edmir P. V. A1 - Machado, Gabriel Raja SN - 0034-7590 UL - 10.1590/S0034-75902011000100006 VL - 51 Y1 - 2011 PB - Brasil ER -