Environmental Health Perspectives, Vol. 102, Supplement 8: Biostatistics in the Study of Human Cancer (Nov., 1994), pp. 47-51 (5 pages) A stratified version of nested case-control sampling which we ...
Postresection CA 19-9 Predicts Overall Survival in Patients With Pancreatic Cancer Treated With Adjuvant Chemoradiation: A Prospective Validation by RTOG 9704 We conducted a nested case-control study ...
Correspondence to Dr Brent E Hagel, Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 1N4, Canada; brent.hagel{at}albertahealthservices.ca Background ...
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