7 lines (6 with data), 258 Bytes

m241b 0 128 0 11:00:00 13/10/1989
# Start time=11:00
# First beat=11:05:28.343
# <age-range>: 55-59, <sex>: Male, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.593,  <RR-high-limit(sec)>: 1.093
# Note: recording with a timing signal, flutter-compensated