passages.id: split_4_test_3452_passage
passages.type: progene_text
passages.text: Using polymerase chain reaction ( PCR ) - based sequence - specific primers , the killer immunoglobulin - like receptor ( KIR ) genotypes of 35 patients with natural killer ( NK ) - type lymphoproliferative disease of granular lymphocytes and of 50 normal subjects were investigated to evaluate whether genes coding for activating KIRs were more frequently detected in patients with NK - lymphoproliferative disease of granular lymphocytes ( LDGL ) .