APA 6th Edition Modrić, K. (1951). O uzrocima invalidnosti kod željezničara. Arhiv za higijenu rada i toksikologiju, 2 (2), 145-157. Preuzeto s https://hrcak.srce.hr/188202
MLA 8th Edition Modrić, Kazimir. "O uzrocima invalidnosti kod željezničara." Arhiv za higijenu rada i toksikologiju, vol. 2, br. 2, 1951, str. 145-157. https://hrcak.srce.hr/188202. Citirano 20.10.2019.
Chicago 17th Edition Modrić, Kazimir. "O uzrocima invalidnosti kod željezničara." Arhiv za higijenu rada i toksikologiju 2, br. 2 (1951): 145-157. https://hrcak.srce.hr/188202
Harvard Modrić, K. (1951). 'O uzrocima invalidnosti kod željezničara', Arhiv za higijenu rada i toksikologiju, 2(2), str. 145-157. Preuzeto s: https://hrcak.srce.hr/188202 (Datum pristupa: 20.10.2019.)
Vancouver Modrić K. O uzrocima invalidnosti kod željezničara. Arh Hig Rada Toksikol. [Internet]. 1951 [pristupljeno 20.10.2019.];2(2):145-157. Dostupno na: https://hrcak.srce.hr/188202
IEEE K. Modrić, "O uzrocima invalidnosti kod željezničara", Arhiv za higijenu rada i toksikologiju, vol.2, br. 2, str. 145-157, 1951. [Online]. Dostupno na: https://hrcak.srce.hr/188202. [Citirano: 20.10.2019.]
Sažetak The author classified .statistically 352 cases of invalidity among railwaymen and the employees of the State Railways. They were examined at the Institute of Social· Insurance in connection with their claim for invalid pension. They were divided into 6 categories according to their work: rail workers, skilled workers, train staff, station staff and unskilled workers and employees. Their average age was 52.5 years: the lowest (50.04) among station personnel and the highest (53.8) among rail workers. Slightly over one quarter of the railwaymen (27.8%) were under 50. In the majority of cases the cause of invalidity were degenerative changes in the cardiovascular system complicated by chronical disorders of the respiratory organs. Pulmonary tuberculosis ranked third with 8.52% of the cases - predominantly of the fibrocaseose-cavernous form. Tuberculosis is the most considerable cause of invalidity among younger insureds. Rheumatism as the only cause of invalidity existed in altogether 7.4%, but it resulted from the analysis of all rheumatic rnanifestations that it represented an important factor, especially among rail workers and station personnel diseases of the gastrointestinal tract occur fairly often among railwaymen and play a noticeable part in invalidity. Gastroduodenal ulcers are particularly frequent (6.23% while there were 5.39% resections of the stomach because of ulcers) especially among rail workers and station personnel. Connected with the high rate of digestion disorders were no doubt general enfeeblement, exhaustion, cachexia and premature ageing. On the basis of the analysis of the whole material the author concludes that it would be necessary to shorten the duration of employment of administrative employees and lower the age limit necessary for a full old age pension.