11.   Waiting patients are now grouped into four broad categories.

a. + patient >>共 968
ill 7.74%
elderly 3.18%
new 2.30%
the 2.08%
young 1.87%
first 1.81%
former 1.81%
older 1.66%
dying 1.56%
psychiatric 1.49%
waiting 0.23%
waiting + n. >>共 244
period 21.22%
car 9.77%
time 9.31%
area 5.92%
ambulance 4.69%
reporter 4.49%
bus 2.80%
van 1.95%
limousine 1.82%
journalist 1.50%
patient 0.72%
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