20912
This method is an efficient use of FabAV , avoiding the wasteful excess of a bolus dose , may be more effective , eliminating the potential for destruction of hematologic factors when protective antivenom levels are lost between bolus FabAV doses , and appears to be safe .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None