TY - RPRT TI - Guidelines for methacholine and exercise challenge testing-1999. This official statement of the American Thoracic Society was adopted by the ATS Board of Directors, July 1999. AU - R O Crapo AU - R Casaburi AU - A L Coates AU - P L Enright AU - J L Hankinson AU - C G Irvin AU - N R MacIntyre AU - R T McKay AU - J S Wanger AU - S D Anderson AU - D W Cockcroft AU - J E Fish AU - P J Sterk PY - 2000 DO - 10.1164/ajrccm.161.1.ats11-99 UR - https://pubmed.ncbi.nlm.nih.gov/10619836/ ID - 10619836 ER -