TY  - RPRT
TI  - Frontal sinolith.
AU  - D G Grant
AU  - A Hussain
AU  - R Burgel
PY  - 1998
DO  - 10.1017/s0022215100141118
UR  - https://pubmed.ncbi.nlm.nih.gov/9764300/
ID  - 9764300
ER  -