@misc{indiciae82d3e491ae41, title = {Methacholine PC20 extrapolation.}, author = {R Jokic and E E Davis and D W Cockcroft}, year = {1998}, doi = {10.1378/chest.114.6.1796-a}, url = {https://pubmed.ncbi.nlm.nih.gov/9872233/}, note = {Source identifier: 9872233} }