TY  - RPRT
TI  - Letter: Primary prevention.
AU  - R Mulcahy
AU  - N Hickey
PY  - 1975
DO  - 10.1016/s0140-6736(75)91654-2
UR  - https://pubmed.ncbi.nlm.nih.gov/47505/
ID  - 47505
ER  -