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HARMONIZED DATA

Label:s12puffpos
Description:s12puffpos:w12 s pos during breathing tests
Item type:Constructed variable
Answer type:Enumerated
Answer choices: 1.standing ; 2.sitting ; 3.lying down ; .a=r not asked phys meas this wave ; .e=r did not sign phys meas consent waiver ; .n=r ineligible for phys meas this wave ; .r=r refused specific test ; .s=skip ; .u=unmarried ; .v=spouse nr
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