7 lines (6 with data), 254 Bytes

f215b 0 128 0 10:00:00 19/03/1988
# Start time=10:00
# First beat=10:20:33.710
# <age-range>: 75-79, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.585,  <RR-high-limit(sec)>: 0.859
# Note: reel-to-reel recording, not flutter-compensated