Choice of injection site, locus of control, and the perception of momentary pain.
D000328:Adult; D000367:Age Factors; D000368:Aged; D002755:Choice Behavior; D003073:Cognitive Dissonance; D005260:Female; D006801:Humans; D007273:Injections, Intramuscular / Q000523:psychology*; D007389:Internal-External Control; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000523:psychology*; D010465:Perception; D011581:Psychological Tests; D012737:Sex Factors