1
New level
2
Medical Term
3
201411
4
201412
5
201501
6
201502
7
201503
8
201505
9
201506
10
201507
11
201508
12
201509
13
201510
14
201607 study
15
201511
16
201512
17
201601
18
201602
19
201603
20
201604
21
201605
22
201606
23
201607
24
201608
25
201609
26
201610
27
201611
28
201612
29
201701
30
201702
31
201706
32
201707
33
201708
34
201709
35
201710
36
201711
37
201712
38
201801
39
201802
40
201803