Fig. 1From: Preventive efficacy of six monthly oral doses of Simparica Trio®, Heartgard® Plus, and Interceptor® Plus against a macrocyclic lactone-resistant strain (ZoeLA) of heartworm (Dirofilaria immitis) in dogsEfficacy of Simparica® Trio against ML-resistant heartworm strain ZoeLA compared to Heartgard® Plus or Interceptor® PlusBack to article page