PREVALENCE OF PSORIATIC ARTHRITIS IN PSORIASIS PATIENTS ATTENDING DERMATOLOGICAL AND RHEUMATOLOGICAL CLINICS ACCORDING TO PEST (PSORIASIS EPIDEMIOLOGY SCREENING TOOL) AND CASPAR CRITERIA Article Chamurlieva M., Loginova E., Korotaeva T., Batkaev E. CLINICAL AND EXPERIMENTAL RHEUMATOLOGY. CLINICAL & EXPER RHEUMATOLOGY. Vol. 32. 2014.