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https://ready4-dev.github.io/youthvars/reference/youthvars_aqol6d_adol.html
youthvars ready4 sub-module (S3 class) for Assessment of Quality of Life Six Dimension Health...
Create a new valid instance of the youthvars ready4 sub-module (S3 class) for Assessment of Quality of Life Six Dimension Health Utility - Adolescent Version...