TY - RPRT TI - Soluble HLA antigens: how it all started. AU - J J van Rood AU - A van Leeuwen PY - 1999 DO - 10.1016/s0198-8859(99)00009-9 UR - https://pubmed.ncbi.nlm.nih.gov/10447399/ ID - 10447399 ER -