Items where Author is "Welch, H. G."

Wennberg, J. E., Staiger, D. O., Sharp, S. M., Gottlieb, D. J., Bevan, Gwyn ORCID: 0000-0003-2123-3770, McPherson, K. and Welch, H. G. (2013) Observational intensity bias associated with illness adjustment: cross sectional analysis of insurance claims. BMJ, 346 (feb21). f549-f549. ISSN 0959-8146