PMID: 322100 [PubMed - indexed for MEDLINE]
South Med J. 1978 Aug; 71(8):956-7.
[South Med J. 1978]
Nurs Times. 1977 Mar 10; 73(10):356.
[Nurs Times. 1977]
Nurs Times. 1977 Apr 7; 73(14):494.
Nurs Times. 1976 Aug 5; 72(31):1201.
[Nurs Times. 1976]
Dis Esophagus. 2004; 17(1):1-9.
[Dis Esophagus. 2004]
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