Concepedia

Exercise and self-management for people with chronic knee, hip or lower back pain: a cluster randomised controlled trial of clinical and cost-effectiveness. Study protocol

Nicola Walsh, Fiona Cramp, Shea Palmer, Jon Pollock, Lisa V. Hampson, Rachael Gooberman‐Hill, Colin Green, Louise Jones, Sonia Phillips, Liz Johnson,

Physiotherapy · 2012 · 25 citations · 23 references

DOIFull text

Open access

Concepts

References

23

The Hospital Anxiety and Depression Scale

A. S. Zigmond, R. P. Snaith · Acta Psychiatrica Scandinavica · 1983 · 46.6K citations

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Constructing Grounded Theory. A Practical Guide Through Qualitative Analysis

QMiP Bulletin · 2006 · 11.9K citations · Full text

, , +11

Identification of Causal Effects Using Instrumental Variables

Joshua D. Angrist, Guido W. Imbens, Donald B. Rubin · Journal of the American Statistical Association · 1996 · 4.2K citations

, , +14

Identification of Causal Effects Using Instrumental Variables

Joshua D. Angrist, Guido W. Imbens, Donald B. Rubin · Journal of the American Statistical Association · 1996 · 4.1K citations · Full text

, , +14

Guidelines for authors and peer reviewers of economic submissions to the BMJ

Michael Drummond, Tom Jefferson · BMJ · 1996 · 1.8K citations · Full text

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