sentences:  Indeed, data from the 2,300-strong "Asociación Ex-Combatientes del Operativo Independencia" indicate that as of 1976, 4 times more Tucumán veterans have died from suicide after operations in the province.Critics of the ex-servicemen association claim that no combat operations took place in the province and that the government forces deployed in Tucumán killed more than 2,000 innocent civilians.According to Professor Paul H. Lewis, a large percentage of the disappeared in Tucumán were in fact students, professors and recent graduates of the local university, all of whom were caught providing supplies and information to the guerrillas.