sentences:  Under the plan, about 12,000 people have been receiving combined antiretroviral therapy (approximately 54% of those requiring it).The national constitution was reformed in 1991 and with this purpose the general system of social security was reformed with the implementation of Law 100, which widely extended health coverage to the population; the economic resources to finance this reform, however, were insufficient, causing the collapse of many public health institutions and affecting the income of the medical staff.The law 100 of 1993 is divided into four books