7 lines (6 with data), 254 Bytes

m081b 0 128 0 15:45:00 09/03/1990
# Start time=15:45
# First beat=16:09:56.179
# <age-range>: 60-64, <sex>: Male, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.468,  <RR-high-limit(sec)>: 0.945
# Note: reel-to-reel recording, not flutter-compensated