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To study the molecular genetics of classical and Duarte galactosemia , we analyzed the GALT mutations in 30 families with classical galactosemia , in 10 families with the D - 2 variant and in 3 individuals carrying the D - 1 allele by denaturing gradient gel electrophoresis ( DGGE ) .
 Disease: classical and Duarte galactosemia; Disease: classical galactosemia
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: classical and Duarte galactosemia; Disease: classical galactosemia