7 lines (6 with data), 259 Bytes

f030b 0 128 0 9:05:00 18/12/1988
# Start time=09:05
# First beat=09:07:54.601
# <age-range>: 45-49, <sex>: Female, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.414,  <RR-high-limit(sec)>: 0.843
# Note: recording with a timing signal, flutter-compensated