APA

Richards C. H., Leitch F. E., Horgan P. G. & McMillan D. C. (20110204). A systematic review of POSSUM and its related models as predictors of post-operative mortality and morbidity in patients undergoing surgery for colorectal cancer. : Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract.

Chicago

Richards Colin Hewitt, Leitch Fiona E, Horgan Paul G and McMillan Donald C. 20110204. A systematic review of POSSUM and its related models as predictors of post-operative mortality and morbidity in patients undergoing surgery for colorectal cancer. : Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract.

Harvard

Richards C. H., Leitch F. E., Horgan P. G. and McMillan D. C. (20110204). A systematic review of POSSUM and its related models as predictors of post-operative mortality and morbidity in patients undergoing surgery for colorectal cancer. : Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract.

MLA

Richards Colin Hewitt, Leitch Fiona E, Horgan Paul G and McMillan Donald C. A systematic review of POSSUM and its related models as predictors of post-operative mortality and morbidity in patients undergoing surgery for colorectal cancer. : Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract. 20110204.