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evchestpain under Medical History in HEARTBEAT variables
evchestpress under Medical History in HEARTBEAT variables
chestpain under Sleep Questionnaires/Sleep Disturbance in HEARTBEAT variables
mhea19 under Medical History in HCHS variables
quchest under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables
phlegm15 under Medical History/SHHS1 in SHHS variables
Do you bring up phlegm from your chest on most days for as much as three months of the year?
fam11i1 under General Health in CHAT variables