passages.id: split_4_test_1061_passage
passages.type: progene_text
passages.text: Hence , by means of the TDT we have investigated four intragenic IL-1 gene - cluster polymorphisms , the IL1B AvaI , the IL1B TaqI , the IL1RTI PstI and the IL1RN 2(nd) intron polymorphisms , for linkage and intra - familial association with IDDM in Danish IDDM multiplex family material comprising 245 families .