1866
Cell viability was assessed by 2 - ( 2 - methoxy - 4 - nitrophenyl ) - 3 - ( 4 - nitrophenyl ) - 5 - ( 2 , 4 - disulfophenyl ) - 2H - tetrazolium monosodium salt assay , while apoptosis was determined by terminal deoxynucleotidyl transferase - mediated dUTP nick end labeling stain .
 Anatomy: Cell
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: Cell