[Bad custom].
Gulbrandsen
P
P
Fugelli
P
P
D004345:Drug Industry; D004363:Drug Utilization / Q000191:economics; D004917:Erythromycin / Q000627:therapeutic use; D006801:Humans; D009664:Norway; D012141:Respiratory Tract Infections / Q000188:drug therapy
D004917:Erythromycin