26030
nAg treatment in vitro resulted in reduced hemoglobin concentration in erythroid cells ; in vivo administration of nAg in mice caused profound reduction of hemoglobin content in embryonic erythrocytes , associated with anemia in the embryos .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None