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Ruiz-Torres A, Zeitz M, Grajewski O, Schneider J, v Lehmann B, Merker H.Ruiz-Torres A, et al. Among authors: merker h.Med Klin. 1978 Feb 3;73(5):162-7.Med Klin. 1978.PMID: 622066German.
Ruiz-Torres A, Ali M, Merker HJ, Schneider J, Staud RD.Ruiz-Torres A, et al. Among authors: merker hj.Med Klin. 1976 Dec 17;71(51-52):2243-7.Med Klin. 1976.PMID: 1016391German.
Zeitz M, Ruiz-Torres A, Merker HJ.Zeitz M, et al. Among authors: merker hj.Arch Dermatol Res. 1978 Nov 10;263(2):207-14. doi: 10.1007/BF00446442.Arch Dermatol Res. 1978.PMID: 736605
HEILMEYER L, CLOTTEN R, KERP L, MERKER H, PARRA CA, WETZEL HP.HEILMEYER L, et al. Among authors: merker h.Dtsch Med Wochenschr. 1963 Dec 20;88:2449-56. doi: 10.1055/s-0028-1112376.Dtsch Med Wochenschr. 1963.PMID: 14108559German.No abstract available.