Kicking the habit. Near-sighted on nicotine?
Huff
C
C
D003625:Data Collection; D006279:Health Maintenance Organizations / Q000191:economics*; D006801:Humans; D019458:Insurance Coverage; D004366:Nonprescription Drugs / Q000191:economics; D016540:Smoking Cessation / Q000191:economics*; D014481:United States
D004366:Nonprescription Drugs