11866
Compound 18 demonstrated EC ( 50 ) values of 37 and 55 nM versus in vitro cultured parasite strains and promising in vivo efficacy in a Plasmodium berghei antimalarial mouse model , with > 50 % survival at day 31 post - treatment when administered subcutaneously at 256 mg / kg .
 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