2650
Physico - chemical and kinetic study of 10 mutant forms of G6PD , according to WHO program , led to identification of 5 variants of the II class ( Shekii , Bideiz , Shirin - Bulakh , Okhut I and Zakataly ) and 2 variants of the III class ( Okhut II and Martinique - like ) .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 None