Arroll, B., Goodyear-Smith, F., Kerse, N., Fishman, T., & Gunn, J. (2005). Effect of the addition of a “help” question to two screening questions on specificity for diagnosis of depression in general practice: Diagnostic validity study. BMJ Publishing Group Ltd.

Arroll, B., F. Goodyear-Smith, N. Kerse, T. Fishman, and J. Gunn. Effect of the Addition of a “help” Question to Two Screening Questions On Specificity for Diagnosis of Depression in General Practice: Diagnostic Validity Study. BMJ Publishing Group Ltd, 2005.

Arroll, B., et al. Effect of the Addition of a “help” Question to Two Screening Questions On Specificity for Diagnosis of Depression in General Practice: Diagnostic Validity Study. BMJ Publishing Group Ltd, 2005.