TY  - RPRT
TI  - Not a laughing matter [ letter].
AU  - G Tisman
AU  - D Testa
PY  - 1979
DO  - 10.14219/jada.archive.1979.0114
UR  - https://pubmed.ncbi.nlm.nih.gov/285123/
ID  - 285123
ER  -