The Bellevue Guide to Outpatient Medicine represents a collaboration among primary care and specialist physicians in the Department of Medicine at New York School of Medicine. It is intended for use by teachers, students and practitioners of primary care and in the hospital outpatient department. The Guide presents data about prevalence of disease, accuracy and diagnosis from congestive heart failure to domestic violence. Advice about patient management is interwoven with annotated references in a unique two column format providing the actual data upon which recommendations are based. (For example, recommendations to use statin drugs to treat hypermlipidemia are accompanied by literature based estimates of live-saving potential by statins among various patient groups.) Readers of The Guide are encouraged to use this data to tailor clinical decisions to meet the needs of their individual patients.