@misc{indiciaef2c9816e7786, title = {Diagnosing sinusitis.}, author = {A R Cass and S B Cantor and R D Clover}, year = {1993}, doi = {10.7326/0003-4819-119-1-199307010-00019}, url = {https://pubmed.ncbi.nlm.nih.gov/8498772/}, note = {Source identifier: 8498772} }