About the Authors

Ahmed El-Tahtawy

ahmed.el-tahtawy@pfizer.com

Affiliation Global Clinical Research, Pfizer, New York, New York, United States of America

Paul Glue

Affiliation Global Clinical Research, Pfizer, New York, New York, United States of America

Emma N. Andrews

Affiliation Global Clinical Research, Pfizer, New York, New York, United States of America

Jack Mardekian

Affiliation Global Clinical Research, Pfizer, New York, New York, United States of America

Guy W. Amsden

¤ Current address: Clinical Research Division, Bassett Healthcare Research Institute, Bassett Healthcare, Cooperstown, New York, United States of America

Affiliation Global Clinical Research, Pfizer, New York, New York, United States of America

Charles A. Knirsch

Affiliation Global Clinical Research, Pfizer, New York, New York, United States of America

Competing Interests

GWA is a consultant for Pliva and has done antimicrobial research for Pfizer, Abbott, Aventis, Bayer, GlaxoSmithKline, and Bristol-Myers Squibb. All other authors are employees of Pfizer, Inc., who sponsored this analysis.

Author Contributions

Conceived and designed the experiments: AE-T PG EA JM GA CK. Performed the experiments: AE-T PG. Analyzed the data: AE-T PG EA JM GA CK. Contributed reagents/materials/analysis tools: AE-T PG. Wrote the paper: AE-T PG EA JM GA CK.