TY  - RPRT
TI  - Worry, fear, and concern differentiated.
AU  - S Levy
AU  - L Guttman
PY  - 1985
DO  - 10.3109/01612848509009457
UR  - https://pubmed.ncbi.nlm.nih.gov/3854011/
ID  - 3854011
ER  -