To investigate whether an oral nutritional supplement of a mixture of arginine, glutamine and HMB for a maximum period of four weeks is more beneficial than the standard dietary approach to the healing of pressure ulcers, and to examine whether the use of it can reduce admissions and length of hospitalizations for these patients.
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percentage change in pressure ulcer area
Timeframe: 4 weeks
change in Pressure Ulcer Scale for Healing (PUSH)
Timeframe: 4 weeks