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Chrysomya rufifacies is a species belonging to the blow fly family , Calliphoridae , and is most significant in the field of forensic entomology due to its use in establishing or altering postmortem interval s. The common name for the species is the hairy maggot blow fly , and it belongs to the genus Chrysomya , which is commonly referred to as the Old World screw-worms .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
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