4594
Kniest dysplasia is a moderately severe chondrodysplasia phenotype that results from mutations in the gene for type II collagen , COL2A1 .
 Kniest dysplasia, chondrodysplasia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 Kniest dysplasia, chondrodysplasia