RT Journal Article SR Electronic T1 Passive Smoking: Nuisance or Health Risk? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 115 OP 116 VO 56 IS 2 A1 Wiedemann, Herbert P. YR 1989 UL http://www.ccjm.org/content/56/2/115.2.abstract AB