TY  - RPRT
TI  - NO barrier too tight.
AU  - V Lazaron
AU  - D L Dunn
PY  - 1999
DO  - 10.1097/00003246-199910000-00058
UR  - https://pubmed.ncbi.nlm.nih.gov/10548243/
ID  - 10548243
ER  -