1966
Abnormal uterine bleeding ( AUB ) , which is defined as excessively heavy , prolonged and / or frequent bleeding of uterine origin , is a frequent cause of visits to the Emergency Department and / or health care provider .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None