000 00311nam a2200109Ia 4500
008 160509s9999 xx 000 0 und d
100 _aCirculation
245 _aCirculation : 1989 : Volume 80(S4-S5) : (Tiruvallur)
260 _bThe American Heart Association Inc.
_c1989
300 _a188p.
650 _aCirculation
999 _c4882
_d4882