Daniel M. Musher, Mark E. Dowell, Virginia D. Shortridge, Robert K. Flamm, James H. Jorgensen, Pierre Le Magueres, Kurt L. Krause,
Emergence of Macrolide Resistance during Treatment of Pneumococcal Pneumonia The New England Journal of Medicine. ,vol. 346, pp. 630- 631 ,(2002) ,
10.1056/NEJM200202213460820