TY - JOUR T1 - Vertical integration in service industries: an exploratory study at the healthcare industry in São Paulo JO - Production A1 - Albuquerque, Gustavo M. de A1 - Fleury, Maria Tereza Leme A1 - Fleury, André Leme SN - 0103-6513 UL - 10.1590/S0103-65132011005000015 VL - 21 Y1 - 2011 PB - Brasil ER -