Identifying the least biased studies.
D015982:Bias; D001943:Breast Neoplasms / Q000000981:diagnostic imaging* / Q000401:mortality / Q000628:therapy; D015340:Epidemiologic Research Design; D019317:Evidence-Based Medicine / Q000379:methods*; D005260:Female; D006801:Humans; D008327:Mammography / Q000009:adverse effects; D008403:Mass Screening / Q000379:methods*; D061214:Patient Safety; D011237:Predictive Value of Tests; D011379:Prognosis; D016032:Randomized Controlled Trials as Topic; D018570:Risk Assessment; D012307:Risk Factors