Table 2.

Discriminating answer for each parallel pair of cases

Case	Age	Clinical problem	Discriminating answer
1	5 years	Fever	Not applicable
2	Adult	Nosebleed	None
3	Adult	Nosebleed	Noticed several bruises in past few hours
4	Adult	Fever	None
5	Adult	Fever	Irregular usage of antimalarial drugs in past two weeks
6	5 years	Vomiting	None
7	5 years	Vomiting	Had head injury a few hours ago