Table 3. Research trends according to research subjects
Research subject
Distribution and trend by year
Summation (%)
2000–2005
2006–2010
2011–2015
2016–2020
2021–2022
Characteristic
General
1
10
24
10
45 (66)
Diagnosed
1
10
10
2
23 (34)
Preselection
Requesting
1
6
1
8 (12)
Evaluation
1
14
33
12
60 (88)