Of the approximately 3,600 Swift boat sailors who served in Vietnam, the names of some 200 appeared on the group's statement against Kerry; most did not serve at the same time or in the same place as Kerry. Of those who served in Kerry's boat crew, only Stephen Gardner joined SBVT. He was not present on any of the occasions when Kerry earned his medals, including his Purple Hearts. Gardner appeared in two of the group's television advertisements. All other living members of Kerry's crew supported his presidential bid, and some frequently campaigned with him as his self-described "band of brothers". Kerry crew members have disputed some of SBVT's various allegations, calling them "totally false" (Drew Whitlow), "garbage" (Gene Thorson), and "a pack of lies" (Del Sandusky). Several members of Swift Boat Veterans for Truth (SBVT) served in the same unit as Kerry, although Gardner was the only one to serve on Kerry's boat. A number of Kerry's SBVT critics were present on accompanying Swift Boats at one of the combat events for which Kerry was decorated with the Bronze Star Medal and a third Purple Heart. Another SBVT member, Dr. Louis Letson, was the physician who claims to have treated Kerry for his first Purple Heart wound. Larry Clayton Lee was the sole SBVT member to participate in the event for which Kerry was awarded the Silver Star. No SBVT member participated in events related to the award of Kerry's second Purple Heart.