RT Journal Article SR Electronic T1 Hot and cold biopsy: implications of study design on outcomes JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1067 OP 1068 DO 10.1183/09031936.00007707 VO 29 IS 5 A1 A. Nath A1 R. Srinivas A1 R. Agarwal YR 2007 UL http://erj.ersjournals.com/content/29/5/1067.abstract AB