Figure 1.

CONSORT diagram for progression of participants through UCSF/SFGH Internet World Health Research Center Internet Stop Smoking Trial (2005–2007). UCSF = University of California, San Francisco; SFGH = San Francisco General Hospital; Guía = smoking cessation guide; ITEMs = Individually Timed Educational Messages (sent via E-mail with link to site); MM = mood management intervention (eight-lesson cognitive-behavioral course); and VG = virtual group (an asynchronous bulletin board that allowed participants to provide each other mutual support and information).