passages.id: split_1_test_605_passage
passages.type: progene_text
passages.text: Observed and expected numbers of women with PKU ( defined as blood phenylalanine levels > or = 400 mumol / L , and phenylalanine - restricted diet recommended ) by age ; number with no clinical contact with the PKU service in previous year ; outcomes of pregnancies in women with PKU ( January 1994 to July 1996 ) .