1859
In vivo studies in rats utilized 2 mg/kg IV bolus doses of liposomal MPL compared to drug in solution.
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities:  
Answer:
 None