Codes and Frequencies
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Description
For persons who reported anyone in the family having stiffness in joints when first getting out of bed in morning during the past 12 months, JNTMORNSTF reports on the cause of morning joint stiffness.
Universe
- 1969: Persons reporting stiffness in joints when first getting out of bed in morning.
Availability
- 1969
Weights
- 1969 : PERWEIGHT
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