In these two issues of the Primary Care Clinics of North America, we are pleased to offer you Evidence-Based Approaches to Common Primary Care Dilemmas. During the past decade, evidence-based medicine (EBM) has had a major impact on health care and the way we practice medicine in the office. As the focus of medical research has evolved from disease-based outcomes to the important, patient-oriented outcomes of mortality and quality of life, we are beginning to have answers that change the way we practice. To address this change, we present an evidence-based approach to common problems encountered by primary care physicians, written by primary care physicians. Where possible, we provide.