RT Journal Article SR Electronic T1 Worsening shortness of breath JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 104 OP 109 VO 70 IS 2 A2 Williams, Marc A1 Shaaraoui, Mustaphasahim A1 Rimmerman, Curtis M. YR 2003 UL http://www.ccjm.org/content/70/2/104.abstract AB