7 lines (6 with data), 254 Bytes

f003b 0 128 0 10:15:00 20/11/1988
# Start time=10:15
# First beat=10:25:26.882
# <age-range>: 55-59, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.421,  <RR-high-limit(sec)>: 1.257
# Note: reel-to-reel recording, not flutter-compensated