7 lines (6 with data), 258 Bytes

m087b 0 128 0 13:58:00 09/10/1990
# Start time=13:58
# First beat=14:05:47.304
# <age-range>: 60-64, <sex>: Male, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.664,  <RR-high-limit(sec)>: 1.234
# Note: recording with a timing signal, flutter-compensated