TY  - RPRT
TI  - Einstellung by observation.
AU  - M E Rosenbaum
AU  - S J Arenson
PY  - 1967
DO  - 10.2466/pr0.1967.21.2.345
UR  - https://pubmed.ncbi.nlm.nih.gov/6079222/
ID  - 6079222
ER  -