Cart Summary Remove item Thumbnail image Product Price Quantity Subtotal × Differential Diagnosis in Internal Medicine: From Symptom to Diagnosis $19.99 Differential Diagnosis in Internal Medicine: From Symptom to Diagnosis quantity $19.99 × Harrison's Principles of Internal Medicine (Vol.1 & Vol.2)(19th Edition) $39.99 Harrison's Principles of Internal Medicine (Vol.1 & Vol.2)(19th Edition) quantity $39.99 Coupon: Apply coupon Update cart Cart totals Subtotal $59.98 Total $59.98 Proceed to checkout — or — — or — Visa CardMasterCardAmerican ExpressDiscover CardPayPalApple PayGuaranteed Safe And Secure Checkout