MDCalc is the most broadly used clinical reference for healthcare professional (HCP) decision making at the moment of care. As a highly trusted resource for doctors, by doctors, we provide best-in-class tools to support evidence-based decisions and higher quality patient care. MDCalc is used each month by millions of HCPs globally, including more than 65% of US physicians weekly. Our original content - written by physician experts and available across multiple devices - supports 35+ specialties and covers 200+ patient conditions. MDCalc's founders are two practicing Emergency Medicine physicians: Dr. Graham Walker and Dr. Joe Habboushe. Learn more mdcalc.com/about-us.