@misc{indiciaee5e516edfe7e, title = {A comparative study of four different bronchial challenge tests.}, author = {L Haugaard and M Iversen and R Dahl}, year = {1992}, doi = {10.1111/j.1398-9995.1992.tb00954.x}, url = {https://pubmed.ncbi.nlm.nih.gov/1514663/}, note = {Source identifier: 1514663} }