7 lines (6 with data), 257 Bytes

m047b 0 128 0 14:00:00 16/04/1991
# Start time=14:00
# First beat=14:04:05.742
# <age-range>: 75-79, <sex>: Male, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.617,  <RR-high-limit(sec)>: 1.14
# Note: recording with a timing signal, flutter-compensated