Amazon.com description: Product Description: "Internal Medicine On Call" hand-held software provides on-the-spot treatment advice for the most frequently encountered problems in internal medicine. The unique On Call format is organized for quick access to over 60 of the most common problems seen on the wards. For each on-call problem, users can immediately focus on the presenting problem, immediate questions, differential diagnosis, lab and other diagnostic tests, and treatment plan. Additional information on laboratory tests, procedures, fluids and electrolytes, and blood component therapy enhance the software's value as a single-source reference. The Therapeutics section offers quick reference to commonly used medications, and includes generic drugs as well as vitamins, minerals, and natural products.