RT Journal Article SR Electronic T1 Nodular pulmonary ossifications in differential diagnosis of solitary pulmonary nodules JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 966 OP 968 DO 10.1183/09031936.00134110 VO 37 IS 4 A1 J. Gielis A1 M. Torfs A1 M. Luijks A1 R. Salgado A1 P.E. Van Schil YR 2011 UL http://erj.ersjournals.com/content/37/4/966.abstract AB