7 lines (6 with data), 257 Bytes

m015b 0 128 0 14:50:00 21/12/1990
# Start time=14:50
# First beat=14:58:13.523
# <age-range>: 70-74, <sex>: Male, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.57,  <RR-high-limit(sec)>: 1.093
# Note: recording with a timing signal, flutter-compensated