The element of surprise.
Jones
M
M
D017088:AIDS-Related Opportunistic Infections / Q000188:drug therapy*; D004049:Diethylcarbamazine / Q000627:therapeutic use*; D005369:Filaricides / Q000627:therapeutic use*; D006801:Humans
D005369:Filaricides; D004049:Diethylcarbamazine