BUZZ-Valeant Pharmaceuticals International Inc: Falls ahead of investor call
** Canadian drugmaker's U.S.-listed shares down 12 pct at $102.00 premarket
** Says to set up an ad hoc committee to look into allegations about the company's association with specialty pharmacy distributor Philidor
** Valeant's shares rebounded on Friday following four days of steep losses triggered by allegations it used specialty pharmacies to inflate revenue
** Company said last week would address the allegations in detail on a conference call with investors on Monday; Call due to start at 8:00 a.m. ET
** The stock fell 32 percent last week
** See TAKE A LOOK-Valeant's rough week in the markets
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