3 Key Things to Watch in Pfizer's Q3 Results

There wasn't much to get excited about the last time Pfizer (NYSE: PFE) reported its quarterly results. While the big pharma company beat analysts' consensus earnings estimate, it also posted a 2% year-over-year revenue decline.

Pfizer announces its third-quarter results before the market opens on Oct. 31. Will the company give investors a Halloween treat -- or a disappointing trick? Here are three key things to watch that will make the difference.

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Source: Fool.com