7 lines (6 with data), 254 Bytes

f126b 0 128 0 14:25:00 23/03/1988
# Start time=14:25
# First beat=14:50:07.164
# <age-range>: 70-74, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.671,  <RR-high-limit(sec)>: 1.492
# Note: reel-to-reel recording, not flutter-compensated