3Q Pharma Results Preview: Pfizer, Gilead, Allergan, Valeant, AstraZeneca

Pfizer, Gilead, Allergan, Valeant and AstraZeneca are among the pharma and biotech companies still to report their third-quarter results. After Merck, Bristol-Myers, Lilly, Amgen, Novartis, Sanofi and others revealed their July-to-September performance, Scrip takes a look at what to expect in the weeks ahead.