Could higher levels of smoking (either by the patient, or by family members) be related somehow? https://www.cdc.gov/tobacco/disparities/low-ses/index.htm http

Could higher levels of smoking (either by the patient, or by family members) be related somehow? https://www.cdc.gov/tobacco/disparities/low-ses/index.htm https://www.cdc.gov/tobacco/disparities/low-ses/index.htm