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22. Natural history of peptic ulcer disease in Poland. Part. IX. Peptic ulcer disease and cardiovascular and respiratory system diseases. Ruzyłło E, Domosławski Z, Wojnar S, Swiatkowska K. Mater Med Pol; 1990; 22(3):233-8. PubMed ID: 2132432 [Abstract] [Full Text] [Related]
23. [The epidemiology of respiratory tract diseases in Italy: the experience of studies in the rural area of Porto Tolle and the urban area of Pisa and Cascina]. Carrozzi L, Viegi G, Paoletti P. Epidemiol Prev; 1991; 13(48-49):76-8. PubMed ID: 1843329 [No Abstract] [Full Text] [Related]
24. A simplified method of lung function screening. de Hamel FA. N Z Med J; 1974 Apr 24; 79(513):865-8. PubMed ID: 4527622 [No Abstract] [Full Text] [Related]