18678
We report that two common variants of high - temperature requirement A1 ( HTRA1 ) that increase the inherited risk of neovascular age - related macular degeneration ( NvAMD ) harbor synonymous SNPs within exon 1 of HTRA1 that convert common codons for Ala34 and Gly36 to less frequently used codons .
 Chemical: Ala34; Chemical: Gly36
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Ala34; Chemical: Gly36