Financing Hospital Care in the United States. Volume 3. Financing Hospital Care for Nonwage and Low-Income Groups

than that used by American investigators. Exploration with other pure Beta emitters in colloidal form is in progress. Investigations in the intracavitary injections of liquid radioisotope such as sodium, bromine, and colloidal gold, or interstitial implantation of tantalum wire or gold grain for the treatment of carcinoma of the urinary bladder is reported by the Royal Marsden Hospital group of London. Plastic P 32 skin and corneal applicators also have been designed and used by this group. Implantation therapy with artificial radioisotope is still in the developmental stage. The technical aspect in the handling of CO60 needles and nylon ribbon, and Au198 seeds is excellently presented by U. K. Henschke. The Tele-Cobalt Unit is concisely discussed by G. H. Fletcher. A chapter on "Availability and Procurement of Isotope" by D. T. Tabern enhances the practical features of the book. In summary, this volume includes many authoritative articles representing an attempt to show a cross-section of the present effort in the States and abroad to employ artificial radioisotopes in therapy. The information is practical, up-to-date, and in many areas stimulating. All those interested in any of the numerous aspects of artificial radioisotopes, particularly radiologists and clinicians who are dealing with the treatment of benign and malignant diseases with radioisotopes, can't afford to miss this exceedingly useful book.