Cost Savings of Clarithomycin Compared With Erythromycin or Cefaclor in the Treatment of Lower Respiratory Tract Infection: Results of a Randomized, Multicenter StudyByEugene M. Spiritus, MD,R Joanne Chang, MD, PhD,Jie X. Zhang, PhD,Richard C. Hom, MD, PhD,Gerard F. Notario, MD,Donald P. Conway, MD, MBAOctober 1st 1998