passages.id: split_6_test_1460_passage
passages.type: progene_text
passages.text: IL-7Ralpha mRNA expression was more frequent in more mature pre - B ALL [ 91 % ( 30 / 33 ) ] than in common [ 81 % ( 81 / 100 ) ] or pro - B ALL [ 64 % ( 18 / 28 ) ] , or even in T ALL [ 64 % ( 29 / 45 ) ] .