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A rise of hemoglobin concentration accompanied by an increase of the total iron in the blood serum of white mice was found under oxygen pressure of 4 atm for an hour ( preconvulsive state ) and 6 atm ( convulsive state ) .
 GENE: hemoglobin
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: hemoglobin 
Answer:
 GENE: hemoglobin