7 lines (6 with data), 260 Bytes

f157b 0 128 0 11:15:00 05/02/1988
# Start time=11:15
# First beat=11:21:32.109
# <age-range>: 75-79, <sex>: Female, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.617,  <RR-high-limit(sec)>: 1.156
# Note: recording with a timing signal, flutter-compensated