TY  - RPRT
TI  - Establish reason why purulent rhinitis is persistent first.
AU  - Peter J Robb
PY  - 2003
DO  - 10.1136/bmj.326.7387.502/a
UR  - https://pubmed.ncbi.nlm.nih.gov/12609957/
ID  - 12609957
ER  -