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Fatal dog attacks in the United States : ウィキペディア英語版 | Fatal dog attacks in the United States
== Existing studies == There are a limited number of studies concerning the number of human deaths caused by dogs in the United States, and the number of attributed fatalities is difficult to validate or cross-compare with other study results because: * studies dependent on surveying news reports may not find all the relevant news items * different studies use different data collection methodologies and evaluation criteria * breed identification requires a subjective evaluation based on observation of outward physical attributes against imprecise breed standards.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Fatal dog attacks in the United States」の詳細全文を読む
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