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Therefore , we conclude that the testicular effects observed after GaAs are secondary to hypoxaemia caused by the combination of pulmonary proteinosis and haemolytic anaemia .
 Chemical: GaAs
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: GaAs