TY - GEN AU - BUTKEVICH,O M TI - [On the early diagnosis of Bechterew's disease] SN - 0040-3660 PY - 1998///1101 KW - Early Diagnosis KW - Humans KW - Spondylitis KW - Spondylitis, Ankylosing KW - diagnosis N1 - Publication Type: Journal Article ER -