Biotime's West Says Stem Cell Companies Are Vulnerable (Audio)

Michael West, the chief executive officer of Biotime Inc. (BTX), says companies specializing in stem cell research and development are "vulnerable" to short attacks because they are not yet profitable. West talked to Bloomberg's Kathleen Hays and Courtney Donohoe on "The Hays Advantage" Bloomberg Radio on April 24, 2012.

(Source: Bloomberg)

Running time 18:51

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