,PAST SURGICAL HISTORY:  ,The treatment of the thrombosis as noted above on 02/19/2007 and 02/20/2007.,FAMILY HISTORY:  ,Two half-brothers, ages 26 and 28, both in good health. 
,PAST SURGICAL HISTORY : , The treatment of the thrombosis as noted above on 02/19/2007 and 02/20/2007.,FAMILY HISTORY : , Two half - brothers , ages 26 and 28 , both in good health .