BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//gyrobase/iCalendar//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:20130122T181500
DTEND:20130122T203000
RRULE:FREQ=MONTHLY;INTERVAL=1;UNTIL=20140521;BYDAY=4TU
SUMMARY:New Fibromyalgia Support Group
END:VEVENT
END:VCALENDAR