7 lines (6 with data), 258 Bytes

m209b 0 128 0 15:50:00 11/09/1990
# Start time=15:50
# First beat=15:55:51.140
# <age-range>: 40-44, <sex>: Male, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.562,  <RR-high-limit(sec)>: 1.164
# Note: recording with a timing signal, flutter-compensated