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To learn more about the molecular basis of DTDST chondrodysplasias and about genotype - phenotype correlations , we studied fibroblast cultures of three new patients one with AO - 2 , one with DTD , and one with an intermediate phenotype ( AO2 / DTD ) .
 Disease: DTDST chondrodysplasias; Disease: AO - 2; Disease: DTD; Disease: AO2; Disease: DTD
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: DTDST chondrodysplasias; Disease: AO - 2; Disease: DTD; Disease: AO2; Disease: DTD