@misc{indiciae45a9676b83d1, title = {Grading asthma severity: using the APS component of the Apache II system.}, author = {A C Day and A P Rankin and J A Judson}, year = {1993}, doi = {10.1007/bf01694774}, url = {https://pubmed.ncbi.nlm.nih.gov/8366231/}, note = {Source identifier: 8366231} }