Discontinuance of care received by patient(s) due to reasons other than full recovery from the disease.

Individuals who leave school, secondary or college, prior to completion of specified curriculum requirements.

Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries.