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possible synergy between permethrin & fipronil against #flea infestations in dogs https://t.co/8DfdwEsjSg
possible synergy between permethrin & fipronil against #flea infestations in dogs https://t.co/8DfdwEsjSg
Knock-down and speed of kill of a combination of fipronil and permethrin for prevention of C felis flea infestation https://t.co/QmoTngOfg7