TY - RPRT TI - Improved flow cytometric method for HLA-B27 typing. AU - W C Janssen AU - J A Rouwen AU - J J Hoffmann PY - 1992 DO - 10.1177/000456329202900608 UR - https://pubmed.ncbi.nlm.nih.gov/1489163/ ID - 1489163 ER -