7 lines (6 with data), 257 Bytes

m227b 0 128 0 10:15:00 06/08/1989
# Start time=10:15
# First beat=10:22:36.875
# <age-range>: 45-49, <sex>: Male, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.445,  <RR-high-limit(sec)>: 1.14
# Note: recording with a timing signal, flutter-compensated