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to phrases
negative control
chem.
Blindversuch
f
;
Blindprobe
f
health.
negative Regulation
med.
negative Kontrolle
negative control
:
8 phrases
in 7 subjects
Chemistry
1
Engines
1
General
1
Measuring instruments
1
Medical
1
Optics
branch of physics
2
Pharmacy and pharmacology
1
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