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21 6 17 11

RCA

RCA

: 21 6 22 5

46%

14%7%4%

4%

25%

n=682

4

24

: 21 1 6 (n=23)

21

32

01

2

2

2

1

1

1

1 1

1

1

1

0

1

2

3

4

5

6

7

8

1 2 3 4 5 6

( )

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1545

) :RCA

:

:

: 21 6 22 5 (n=24)

1

42 2

01 1 1 1 11

11

2

1 111

10123456721

6 7 8 9 10 11 1222

1 2 3 4 5

( )

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