2766
Although both hypomorphic heterozygotes developed intestinal polyps , tumor multiplicities were much lower than that in Apc ( Delta716 ) mice , heterozygotes of an Apc null allele .
 intestinal polyps, tumor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 intestinal polyps, tumor