Analysis of information sources in references of the Wikipedia article "การศึกษาควบคุมด้วยยาหลอก" in Thai language version.
Neither the experienced investigator nor the naive [subject] is easily fooled on the matter of whether he has received a psychedelic substance or merely a psychoactive placebo such as amphetamine.
Neither the experienced investigator nor the naive [subject] is easily fooled on the matter of whether he has received a psychedelic substance or merely a psychoactive placebo such as amphetamine.