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nih.gov
pubmed.ncbi.nlm.nih.gov
Gillick، M. R. (2000). "Rethinking the Role of Tube Feeding in Patients with Advanced Dementia". New England Journal of Medicine. ج. 342 ع. 3: 206–210. DOI:10.1056/NEJM200001203420312. PMID:10639550.