3939
Eleven biopsy specimens ( five papules and six dusky or crusted lesions ) from four patients with pityriasis lichenoides et varioliformis acuta ( PLEVA ) were studied by direct immunofluorescence and immunoperoxidase technics .
 GENE: immunoperoxidase
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: immunoperoxidase 
Answer:
 GENE: immunoperoxidase