TY  - RPRT
TI  - Histopathological observations in chronic maxillary sinusitis.
AU  - P Stierna
AU  - B Carlsöö
DO  - 10.3109/00016489009107468
UR  - https://pubmed.ncbi.nlm.nih.gov/2284920/
ID  - 2284920
ER  -