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Radio button answers encoded as numbers (e.g., first answer is "1," second answer is "2," etc.)
and checkbox answers encoded as "1" or "0" (e.g., "1" if answer checked and "0" if not checked).
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second_choice
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third_choice
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hospitalized_personally2
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specify_condition
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accept_score
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comments
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reason
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comment_features2
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zipcode
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name
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phone
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email_address
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interview_rate
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redirect_second
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control1_x
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control2_x
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concept_x
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experience_x
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experience_x
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features2_1_x
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features2_2_x
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features2_3_x
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features2_4_x
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features2_5_x
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features2_6_x
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features2_7_x
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features2_8_x
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diag1_x
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diag2_x
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diag3_x
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diag4_x
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gender
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age
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income
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pid
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psid
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linescore
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linescore_segment
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url
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cell_id
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lupdate
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session_id
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run_state
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