21815
We fit sex - specific multivariable regression models to compare bone outcomes between Asians and Caucasians , adjusting for age , age at menarche ( girls ) , lean mass , ulnar length , dietary calcium intake and physical activity .
 Chemical: calcium
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: calcium