RT Journal Article SR Electronic T1 An Unusual Cause of Nonresolving Pneumonia JF Respiratory Care FD American Association for Respiratory Care SP 1266 OP 1269 VO 54 IS 9 A1 Srinivas Rajagopala A1 Navneet Singh A1 Ritambara Nada A1 Dheeraj Gupta YR 2009 UL http://rc.rcjournal.com/content/54/9/1266.abstract AB