650
There is a positive correlation between health worker density and various health indices , most notably infant mortality rate , maternal mortality rates , and various disease specific mortality and morbidity rates [ 6 , 7 ] .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities:  
Answer:
 None