Margerey (J Path Bact 1949; 61:203-208) studied 250 mitral valves and postulated that the mechanism of formation is intimal damage due to mechanical trauma at the leaflet coaptation. The damaged area is covered by fibrin, which subsequently becomes uplifted, or partially detached from the valve surface.
Irving, TX Current Weather and Forecast. Irving, TX Weather Forecast. 3:20 PM CDT SAT APR 15 2017. TONIGHT - Partly cloudy this evening - then becoming mostly cloudy. Lows in the mid 60s. South winds 5 to 10 mph.
Recent Weather in Austin; Average high and low temperatures, total snowfall and precipitation for each year since 2010. Recent weather for: Dallas Houston San Antonio. Average Water Temperatures Along the Texas Gulf Coast; Monthly and yearly averages for ocean temperatures at Galveston, South Padre Island and other beaches.