form the basis | 0.56 |
last 2-4 hours | 0.41 |
occur in virtually all … | 0.38 |
occur in the presence o… | 0.25 |
last | 0.25 |
death | 0.29 |
countered with naloxone | 0.64 |
balanced with potential… | 0.60 |
produced by morphine | 0.60 |
assessed | 0.58 |
studied for many years | 0.56 |
offset by increased rat… | 0.49 |
felt | 0.48 |
countered with naltrexo… | 0.32 |
observed | 0.26 |
reduced with increasing… | 0.25 |
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