Yang 1996.

Methods	Randomised clinical trial, China
Participants	21 hospitalised adults with gastric ulcer and cancer, at nutritional risk due to gastric surgery Male:Female = 13:8 Mean age = 48.9 years Exclusion criteria: not stated
Interventions	Experimental group: from the 1st day after operation, the participants received Nutrison enteral nutrition (418 kJ calorie, 4.0 g protein, 3.9 g fat, 12.3 g carbohydrate per 100 ml). The intake was 500 ml at the beginning and increased with 500 ml a day, until it reached 2000 ml/day. The course of the treatment was 7 days. (n = 11) Control group: No intervention Liquid diet was started on the 3rd ˜ 5th day. (n = 10) Co‐interventions: Conventional fluid infusion to maintain water, electrolyte balance. Blood transfusion was given as needed.
Outcomes	Serious adverse events, morbidity, urea nitrogen, nitrogen balance, plasma protein, T cell subsets and NK cell activity were calculated, body weight
Study dates	Not stated
Notes	We found no contact information for the authors.
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	Low risk	The numbers and reasons for the withdrawals and dropouts were clearly stated.
Selective reporting (reporting bias)	Unclear risk	No protocol could be obtained. The trial reported on 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.