AU - Ed:Christie, D A AU - Tansey, E M TI - Wellcome Witnesses to Twentieth Century Medicine. Post Penicillin Antibiotics:From acceptance to resistance ? SN - 1 84129 012 2 U1 - 61(091)548.7 W24 PB - LonDon:The Wellcome Trust Centre for the History of Medicine at University College ER -