Johnson & Johnson earnings preview

Johnson & Johnson (NYSE:JNJ), the world's biggest healthcare company that's been squeezed by generic competition, reports third-quarter earnings Tuesday morning. Alex Gorsky, worldwide chairman of medical devices and diagnostics; Dominic Caruso, vice president of finance and CFO; and Louise Mehrotra, VP of investor relations, will speak about the report via Webcast at 8:30 a.m. ET.