Unger, E. R., Lin, J. S., Tian, H., Gurbaxani, B. M., Boneva, R. S., & Jones, J. F. (2016). Methods of applying the 1994 case definition of chronic fatigue syndrome – impact on classification and observed illness characteristics. Popul Health Metr.

Unger, E. R., J.-M. S. Lin, H. Tian, B. M. Gurbaxani, R. S. Boneva, ja J. F. Jones. "Methods of Applying the 1994 Case Definition of Chronic Fatigue Syndrome – Impact On Classification and Observed Illness Characteristics." Popul Health Metr 2016.

Unger, E. R., et al. "Methods of Applying the 1994 Case Definition of Chronic Fatigue Syndrome – Impact On Classification and Observed Illness Characteristics." Popul Health Metr 2016.