TY  - RPRT
TI  - ATS statement: guidelines for the six-minute walk test.
AU  - ATS Committee on Proficiency Standards for Clinical Pulmonary Function Laboratories
PY  - 2002
DO  - 10.1164/ajrccm.166.1.at1102
UR  - https://pubmed.ncbi.nlm.nih.gov/12091180/
ID  - 12091180
ER  -