Stoleski, S., J. Minov, J. Karadzinska-Bislimovska, D. Mijakoski, and L. Tutkun. “C-Reactive Protein Concentrations Among Crop and Dairy Farmers With Stable Chronic Obstructive Pulmonary Disease”. Open Access Macedonian Journal of Medical Sciences, vol. 5, no. 6, Sept. 2017, pp. 724-9, doi:10.3889/oamjms.2017.140.