TY  - RPRT
TI  - Response contingency and human gastric acidity.
AU  - A Norman
PY  - 1969
DO  - 10.1111/j.1469-8986.1969.tb02870.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5812329/
ID  - 5812329
ER  -