Biomedical subjects
J R NICHOLS
Publications and source records attributed to J R NICHOLS.
RELATIONSHIPS BETWEEN FIRST LACTATION, LATER PERFORMANCE, AND LENGTH OF HERD LIFE IN HOLSTEIN-FRIESIAN CATTLE.
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Animals↗
REASONS FOR DISPOSAL OF PENNSYLVANIA HOLSTEIN CATTLE.
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Animals↗
The relationship between the analgetic effect of morphine and addiction liability in rats.
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Animals↗
A technique for self-injection of drugs in the study of reinforcement.
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Humans↗
Physical dependence and sstained opiate-directed behavior in the rat. A preliminary report.
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Analgesics, Opioid↗
Drug addiction. II. Variation of addiction.
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Behavior, Addictive↗
Drug addiction. I. Addiction by escape training.
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Behavior, Addictive↗