Unverified80% confidenceDecision RuleTime unknown
跳蚤项圈的持效范围以颈部为中心呈梯度衰减，长毛或大型犬远端部位（尾根/后腿）保护力弱，大体型宠物防治效果不如滴剂/口服全身分布均匀
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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