22402
A population pharmacokinetic study of ARS and dihydroartemisinin ( DHA ) was conducted from sparse sampling in 70 Tanzanian children of ages 6 months to 11 years .
 Chemical: ARS; Chemical: dihydroartemisinin; Chemical: DHA
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: ARS; Chemical: dihydroartemisinin; Chemical: DHA