Validity of informed consent.
D000328:Adult; D000368:Aged; D000893:Anti-Inflammatory Agents / Q000009:adverse effects / Q000627:therapeutic use*; D032882:Comprehension; D032962:Consent Forms; D030881:Disclosure; D004311:Double-Blind Method; D004341:Drug Evaluation; D005260:Female; D006801:Humans; D007258:Informed Consent; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000188:drug therapy*; D010352:Patient Dropouts; D011799:Quinazolines / Q000627:therapeutic use; D035842:Research Subjects; D011795:Surveys and Questionnaires
D000893:Anti-Inflammatory Agents; D011799:Quinazolines