@misc{indiciae26237b657ba4, title = {ATS guidelines for methacholine and exercise challenge testing.}, author = {V Popa}, year = {2001}, doi = {10.1164/ajrccm.163.1.16310b}, url = {https://pubmed.ncbi.nlm.nih.gov/11208661/}, note = {Source identifier: 11208661} }