Dong 1996.

Methods	Randomised clinical trial, China
Participants	520 hospitalised adults undergoing oesophageal and gastric resection, at nutritional risk due to major surgery Male:Female = 340:180 Mean age = 56.5 years Exclusion criteria: None stated
Interventions	Experimental group: Received enteral nutrition in the form of mixed milk post‐surgery On the first day,1000 ml mixed milk was given. If no side effect occurred, a minimum of 2500 ml a day were given from the 2nd day, up to 4 ‐ 6 times a day, at a speed of 30 ml per min. After 7 ‐ 9 days the nutrition tube was removed , if there were no serious adverse effects.(n = 256) Control group: No intervention(n = 264) Co‐interventions: Post‐surgery a daily supplement of glucose 150 ˜ 200 g was given, as well as a discontinuous transmission of plasma, blood or albumin, to maintain the water and electrolyte balance. This was continued until the oral intake was started again.
Outcomes	Albumin, pre‐albumin, transferrin, weight difference, nitrogen balance
Study dates	Not stated
Notes	We could find no contact information for the author.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not described
Allocation concealment (selection bias)	Unclear risk	Not described
Blinding of participants and personnel (performance bias) All outcomes	High risk	Participants and personnel were not blinded
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not described
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	The number of participants with incomplete data was not reproted
Selective reporting (reporting bias)	Unclear risk	No protocol could be obtained and the trial did not report all‐cause mortality or serious adverse events.
For‐profit bias	Unclear risk	It was unclear how the trial was funded
Other bias	Low risk	The trial appeared to be free of other components that could put it at risk of bias.Other bias