7 lines (6 with data), 258 Bytes

f120b 0 128 0 12:00:00 28/03/1989
# Start time=12:00
# First beat=12:08:06.804
# <age-range>: 65-69, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.617,  <RR-high-limit(sec)>: 1.312
# Note: recording with a timing signal, flutter-compensated