30165
Four trials using a similar between - group background approaches to overweight and obese children ' s weight loss met the inclusion criteria , but only one trial reported sufficient data for meta - analysis .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None