TCT control, thrombin clotting time; RVVNT, Russell viper venom time; ANCA, antineutrophil cytoplasmic antibody; RNP, ribonucleoprotein antibodies; SM, anti-smith; SS A/Ro, Sjögren's-syndrome-related antigen A autoantibodies; SS B/LA, Sjögren's-syndrome-related antigen B autoantibodies; Citr Pep, cyclic citrullinated peptide antibody; SCL-70 (topoisomerase 1); APL, antiphospholipid; GPL, IgG phospholipid units; DAT, direct antiglobulin test. Here, IL31RA is linked to acute promyelocytic leukemia.