7 lines (6 with data), 259 Bytes

m119b 0 128 0 9:58:00 22/03/1988
# Start time=09:58
# First beat=10:03:18.179
# <age-range>: 60-64, <sex>: Female, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.421,  <RR-high-limit(sec)>: 0.875
# Note: recording with a timing signal, flutter-compensated