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\fB\s+2FULL\-DISCLOSURE ECG PLOTS\s-2\fR

.PP

This section contains annotated ``full-disclosure'' ECG plots for the

entire database.  Each record is presented on two facing pages.  Each

page contains fifteen one-minute segments.  Each segment contains a pair

of ECG traces with annotation labels placed between them.  Each label is

placed so that the fiducial mark for the annotation corresponds to the

left edge of the label.  The meanings of the various labels are given

in the table on page viii.

.PP

The scale is 2.5 mm/sec and 1 mm/mV (i.e., one-tenth the standard scale

for ECG chart recordings).  To improve the legibility of these plots, the

ECG signals were digitally low-pass filtered with a nine-point moving average

filter before plotting them;  for this reason, high-frequency noise appears

smaller in amplitude in these plots than in the unfiltered high-resolution

strips which begin on page 98.

.PP

At the top and bottom of

each page is a time scale with one-second intervals marked;  five-second

intervals are designated with large ticks on these scales.  To the left

and right of each segment are the times of the beginning and end

of the segment (in minutes and seconds from

the beginning of the record).  The last segment for each record begins at

29 minutes, and ends at 30 minutes and 5.556 seconds (the end of the record).