7 lines (6 with data), 254 Bytes

m217b 0 128 0 12:00:00 23/01/1990
# Start time=12:00
# First beat=12:06:53.492
# <age-range>: 55-59, <sex>: Male, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.546,  <RR-high-limit(sec)>: 1.039
# Note: reel-to-reel recording, not flutter-compensated