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Sanwald R, Ritz E, Rapp W, Andrassy K, Kommerell B.Sanwald R, et al. Among authors: ritz e.Dtsch Med Wochenschr. 1970 Feb 6;95(6):253-6. doi: 10.1055/s-0028-1108446.Dtsch Med Wochenschr. 1970.PMID: 5417676German.No abstract available.
Andrassy K, Ritz E, Sanwald R.Andrassy K, et al. Among authors: ritz e.Dtsch Med Wochenschr. 1970 Dec 4;95(49):2467-9. doi: 10.1055/s-0028-1108856.Dtsch Med Wochenschr. 1970.PMID: 5486564German.No abstract available.
Ritz E, Sanwald R.Ritz E, et al.Z Gesamte Exp Med Einschl Exp Chir. 1970;153(3):237-45. doi: 10.1007/BF02048757.Z Gesamte Exp Med Einschl Exp Chir. 1970.PMID: 5526833No abstract available.