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Molecular heterogeneity in mucopolysaccharidosis IVA in Australia and Northern Ireland : nine novel mutations including T312S , a common allele that confers a mild phenotype .
 Disease: mucopolysaccharidosis IVA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: mucopolysaccharidosis IVA