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Dynamis
; 4: 239-45, 1984.
Article
in Spanish
| MEDLINE
| ID: mdl-11622086
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Sudhoffs Arch
; 64(4): 385-90, 1980.
Article
in German
| MEDLINE
| ID: mdl-6451962
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Sudhoffs Arch
; 63(4): 326-37, 1979.
Article
in German
| MEDLINE
| ID: mdl-162091