BACKGROUND Prevalence of the main rheumatic diseases in the Republic of Sakha(Yakutia)[RS(Y)],one of the regions of the Russian Federation,differs from the other regions of the Russian Federation due to its ethnic and...
BACKGROUND Ankylosing spondylitis(AS)is strongly associated with the human leukocyte antigen(HLA)B27 haplotype.In regions where conventional polymerase chain reaction for HLA typing is available for antigens such as H...