Table 2.

Five Sets of MEDLINE Citations That Form the Test Collection

Set	Search Topic	Annotators	Citations	With Outcome
1	Rheumatoid arthritis, migraine, breast cancer	RN1	275	275
2	Exercise-induced asthma, renal hypertension, tuberculosis	RN1, medical student	123	123
3	Immunization	RN1, RN2, MD, PhD	50	33
4	Diabetes	RN1, RN2, MD, PhD	50	33
5	Treatment Outcome [mh]	MD, PhD	135	128
Total			633	592