3423
DISCUSSION : Epigenetic reprogramming that imparts functional changes in gene expression , the development of cancer stem cells , and immunomodulation are plausible underlying mechanisms by which early - life iAs exposure elicits latent carcinogenic effects .
 Disease: cancer; Chemical: iAs
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: cancer; Chemical: iAs