Parvova, I., A. Rangelov, E. Hristov, R. Rashkov, I. Getov, and S. Ognianov. “PROSPECTIVE STUDY OF ADVERSE DRUG REACTIONS IN A BULGARIAN POPULATION OF PATIENTS WITH INFLAMMATORY JOINT DISEASES TREATED WITH BIOLOGICAL MEDICINAL PRODUCTS”. Rheumatology (Bulgaria), Vol. 28, no. 1, Mar. 2020, pp. 3-19, doi:10.35465/28.1.2020.pp3-19.