TY  - RPRT
TI  - Changes in preventive medicine.
AU  - L S Goerke
PY  - 1968
DO  - 10.1111/j.1746-1561.1968.tb04933.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5183501/
ID  - 5183501
ER  -