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Homozygous mutant mice had no apparent abnormalities of skeletal muscle function , but developed lenticular opacities at a higher rate than controls .
 abnormalities of skeletal muscle function, lenticular opacities
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 abnormalities of skeletal muscle function, lenticular opacities