The Use of Derivatives of ?-MSH for Targeting to Melanomas In Vivo.- The Development of Ricin A-Chain Bnmunotoxins for Clinical Trials in Patients with Hodgkin's Disease.- Ribosome-Inactivating Proteins from Saponaria Officinalis: Tools in the Design of Immunotoxins and Ligand Toxins.- Targeting with IgG and Inmunoliposomes to Circulating Cells: The 'Target Cell Dragging' Concept.- Liposome and Immunoliposome Mediated Delivery of Proteins and Peptides.- Sterically Stabilized Liposomes as Drug Carriers: Pharmacokinetics, Tissue Distribution and Therapeutic Effects in Tumour-Bearing Mice.- Liposomes as Immunological Adjuvants.- Targeting Proteins to Antigen-Presenting Cells and Induction of Cytokines as a Basis for Adjuvant Activity.- Oral Administration of Peptides: Bypassing a Hostile Milieu.- Oral Administration of Insulin: Imitating the Natural Pathway.- Neuropeptide-Mediated Growth of Normal and Cancer Cells: Inhibition by Broad Spectrum Antagonists.- Bacterial Vectors to Target and/or Purify Polypeptides.- Participants' Photograph.- Contributors.