Biting off others' tongues.
D006805:Human Experimentation; D006801:Humans; D009436:Neural Tube Defects; D009747:Nutritional Physiological Phenomena; D016134:Organizational Policy; D011315:Preventive Medicine; D012306:Risk; D018570:Risk Assessment; D015871:Scientific Misconduct; D006113:United Kingdom; D014815:Vitamins
Biomedical and Behavioral Research; Medical Research Council