by {yourself/himself/herself} and without using any special equipment, how much difficulty {do you/does sample person (sp)} have . . sitting for about 2 hours?

Draft

CDE Summary

Quick facts
Short Code
-
Domain
Health assessment
Data Type
-
Unit
-
Source System
NIH CDEs
Permissible Values
-

Definition

No definition provided.

Notes

No notes.

Permissible Values

No permissible values specified.