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In the 1970 s , antineoplastic ( chemotherapy ) drugs were identified as hazardous , and the American Society of Health-System Pharmacists ( ASHP ) has since then introduced the concept of hazardous drugs after publishing a recommendation in 1983 regarding handling hazardous drugs .
 American Society of Health-System Pharmacists, ASHP
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 American Society of Health-System Pharmacists, ASHP