12611
The use of " Trichuris suis " ova ( TSO , or pig whipworm eggs ) by Weinstock , et al. , as a therapy for treating Crohn 's disease and to a lesser extent ulcerative colitis are two examples that support this hypothesis .
 Weinstock, Crohn
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Weinstock, Crohn