TY  - RPRT
TI  - Functional respiratory disorders.
AU  - L Butani
AU  - E J O'Connell
PY  - 1997
DO  - 10.1016/s1081-1206(10)63094-3
UR  - https://pubmed.ncbi.nlm.nih.gov/9291412/
ID  - 9291412
ER  -