Pavlica R, Marincević S, Filipović M, Popovac D
Plucne Bolesti. 1989 Jan-Jun;41(1-2):99-101.
During four years (from 1984-1987) a group of 94 patients with chronic pulmonary tuberculosis were investigated. Mean age of patients was 51 years-the youngest was 27 and the oldest 78. Mean time of disease was 5.4 years. They made 4.8% of all bacteriologically positive nonchronic patients. One third of them were resistant to one, 18% on two, 22% on three and 10% on all known antituberculosis drugs. It is very interesting that 19 patients or 20% were sensitive to all known antituberculosis drugs but tuberculosis still persisted.
在四年期间（1984年至1987年），对一组94例慢性肺结核患者进行了调查。患者的平均年龄为51岁，最年轻的27岁，最年长的78岁。平均病程为5.4年。他们占所有细菌学阳性非慢性患者的4.8%。其中三分之一对一种已知抗结核药物耐药，18%对两种耐药，22%对三种耐药，10%对所有已知抗结核药物耐药。非常有趣的是，19名患者（即20%）对所有已知抗结核药物敏感，但结核病仍然持续存在。
