The colon key is more of a semi colon. It actually tells the interpreter, that this is the end of the line of code. And a new line of code will be starting from here. And this is also microsoft word support one of the most important attributes in programming.
Warfarin is used to treat blood clots (such as in deep vein thrombosis-DVT or pulmonary embolus-PE) and/or to prevent new clots from forming in your body. Preventing harmful blood clots helps to reduce the risk of a stroke or heart attack.
Medical Definition of warfarin. : a crystalline anticoagulant coumarin derivative C19H16O4 related to dicumarol that inhibits the production of prothrombin by vitamin K and is used as a rodent poison and in medicine; also : its sodium salt C19H15NaO4 used especially in the prevention or treatment of thromboembolic diseaseâsee coumadin.