29603
When chemotherapy was introduced in the 1950 s , the BSA formula was adopted as the official standard for chemotherapy dosing for lack of a better option .
 organization: BSA
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: BSA 
Answer:
 organization: BSA