1. Development and reliability of a system to classify gross motor function in children with cerebral palsy
2. Grip strength of family caregivers of people with severe cerebral palsy rated to GMFCS level IV and V
3. Japan Sports Agency of Japanese Government. Data of grip strength of Japanese residents in 2018, the file that can be downloaded; 2018 [Internet]. Available from: https://www.e-stat.go.jp/stat-search/files?page=1&layout=datalist&toukei=00402102&tstat=000001088875 &cycle=0&tclass1=000001133904&stat_infid=000031871996 [cited 2022, Dec 21] [Japanese]
4. Statistical power analyses using G*Power 3.1: Tests for correlation and regression analyses
5. Minitab Express Support. Data considerations for Kruskal-Wallis Test; 2022 [Internet]. Available from: https://support.minitab.com/en-us/minitab-express/1/help-and-how-to/modeling-statistics/anova/how-to/kruskal-wallis-test/before-you-start/data-considerations/ [cited 2022, Dec 21]