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The American Medical Association conducted an investigation of medical peer review in 2007 and concluded that while it is easy to allege misconduct and 15 % of surveyed physicians indicated that they were aware of peer review misuse or abuse , cases of malicious peer review able to be proven through the legal system are rare .
 American Medical Association
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 American Medical Association