3154
This effect was observed whether the cells had been treated with all - trans - RA in serum - free medium or in medium supplemented with heat - inactivated or acid - treated fetal bovine serum .
 Anatomy: cells; Anatomy: serum; Anatomy: fetal bovine serum
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: cells; Anatomy: serum; Anatomy: fetal bovine serum