7 lines (6 with data), 258 Bytes

m106b 0 128 0 12:24:00 21/08/1990
# Start time=12:24
# First beat=12:29:10.914
# <age-range>: 40-44, <sex>: Male, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.468,  <RR-high-limit(sec)>: 0.773
# Note: recording with a timing signal, flutter-compensated