Peri-operative chemotherapy for the treatment of resectable liver metastases from colorectal cancer: A systematic review and meta-analysis of randomized trials

Table 1 Leave-one-out procedure

	All studies included	Without Nordlinger	Without Lorenz	Witout Portier	Without Langer	Without Kemeny	Without Rudroff	Without Lygidakis	Without Wagman
OS (HR)	0.94	NA	0.88	0.98	0.95	0.89	0.93	1.02	0.94
RFS (HR)	0.77	0.75	0.71	0.78	0.76	0.78	0.76	0.80	0.77

ISSN: 1471-2407