Patient-centered prognosis focuses on individual patients. It is a methodology that generates individually tailored probabilistic predictions of a specified medical outcome that a particular patient may experience. Its predictions are based on observable prognostic factors. Because these predictions are both particular-outcome-specific and individual-patient-specific, achieving predictive accuracy poses a formidable challenge. Nevertheless, the patient-centered methodology (PCM) appears to produce more accurate individually tailored patient predictions than current prognostic practice. PCM...