8223
Histological slides of one biopsy of each patient ( formalin - fixed and paraffin - embedded ) were stained with a Modified Giemsa ( MG ) , the Warthin - Starry ( WS ) , and an immunohistochemical method ( IMM ) using purified polyclonal H . pylori antiserum ( DAKO B471 ) .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None