7 lines (6 with data), 258 Bytes

m111b 0 128 0 13:30:00 06/11/1990
# Start time=13:30
# First beat=13:30:00.718
# <age-range>: 65-69, <sex>: Male, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.468,  <RR-high-limit(sec)>: 1.085
# Note: recording with a timing signal, flutter-compensated