000 00269 a2200109 4500
005 20220420052116.0
022 _a13556037
245 _aJournal of the British cardiac society
260 _aU.S.A
_bBMJ publishing group
_c1997
490 _aHeart
_vVol.78
942 _2lcc
_cCR
999 _c19507
_d19507