PMID: 4649540 [PubMed - indexed for MEDLINE]
Med Tekh. 1972 Nov-Dec; 6:7-11.
[Med Tekh. 1972]
Med Prom SSSR. 1966 May; 20(5):16-9.
[Med Prom SSSR. 1966]
Med Prom SSSR. 1966 Jan; 20(1):3-7.
N Engl J Med. 1972 Dec 14; 287(24):1223-7.
[N Engl J Med. 1972]
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[Med Tekh. 1981]
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