When things do not turn out the way we expect.
Herbert
C P
CP
D015982:Bias; D015984:Causality; D003924:Diabetes Mellitus, Type 2 / Q000517:prevention & control; D006801:Humans; D010353:Patient Education as Topic / Q000379:methods*; D016032:Randomized Controlled Trials as Topic / Q000592:standards*; D015203:Reproducibility of Results; D012107:Research Design