000 00309nam a2200109Ia 4500
008 160509s9999 xx 000 0 und d
100 _aCirculation
245 _aCirculation : 1991 : Volume 83(1-2) : (Tiruvallur)
260 _bThe American Heart Association Inc.
_c1991
300 _a738p.
650 _aCirculation
999 _c5220
_d5220