raise doubt

Review of child care cases finds few instances that raise “serious doubt”
Cuts raise doubt on flood work funding
VetStem's growth: clients say 'wow,' researchers raise doubt: small Poway company sees sales soar, but critics abound.
Opposition doubt reforms will raise saving
Analysts Doubt Fed Will Raise Rates in near Future
How global are U.S. local bonds? ; Revised Fed data raise doubt on foreign interest in municipal securities
Va. Hearings Raise Doubt On Plans for Racetrack; Commission Questions Viability of Proposals
Studies raise doubt on validity of animal models in CV research
`Batman,' other novices raise doubt on Peru's vote
Pitch product claims wisely: marketers undergo scrutiny in wellness category as health benefits raise doubt.(HEALTH & WELLNESS)