TY  - RPRT
TI  - An enigmatic sinus tract origin.
AU  - A Y Kaufman
PY  - 1989
DO  - 10.1111/j.1600-9657.1989.tb00353.x
UR  - https://pubmed.ncbi.nlm.nih.gov/2635107/
ID  - 2635107
ER  -