7 lines (6 with data), 253 Bytes

m080b 0 128 0 9:20:00 24/12/1990
# Start time=09:20
# First beat=09:51:12.679
# <age-range>: 60-64, <sex>: Male, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.445,  <RR-high-limit(sec)>: 1.117
# Note: reel-to-reel recording, not flutter-compensated