1613
13
49
899
10
34
871
30
31
2619
6
25
816
22
25
558
4
23
544
7
22
619
9
19
555
8
18
1005
6
18
337
5
17
744
2
17
441
0
17
873
29
17
748
8
16
888
20
16
1349
5
16
334
2
16
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Keyword(s): study