A sigma model with four-dimensional target space parametrized by chiral and twisted chiral N =(2, 2) superfields can be extended to N =(4, 4) supersymmetry off-shell, but this is not true for a model of semichiral fields, where the N = (4, 4) supersymmetry can only be realized on-shell. The two models can be related to each other by T-duality. In this paper we perform a duality transformation f...

Acute graft-versus-host disease (GVHD). a major complication of allogeneic bone marrow transplantation (BMT). is probably mediated by T lymphocytes present in the marrow graft. In this study. the repopulation of the peripheral blood with T4 and T8 T cells was investigated during the period preceding the occurrence of acute GVHD. Twentyfour allogeneic and 1 1 autologous BMT recipients were monit...

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dominant primary hyperparathyroidism and jaw tumor syndrome associated with renal hamartomas and cystic kidney disease: linkage to 1q21-q32 and loss of the wild type allele in renal hamartomas. J Clin Endocrinol Metab 1996; 81: 4204–4211 15. Raue F, Frank-Raue K, Grauer A. Multiple endocrine neoplasia type 2. Clinical features and screening. Endocrinol Metab Clin North Am 1994; 23: 137–156 16. ...