Indications and effects of exchange transfusion in adults in gynaecology and obstetrics.

We wish to thank our neurosurgical colleagues Mr. P. Harris, Mr. J. F. Shaw, and Mr. G. N. N. Reddy; and also Professor Sir John Bruce and Dr. A. Brownfie Smith for their help with some general surgical and otorhinolaryigological aspects respectively of Case 5. We are particularly grateful to Dr. A. S. Brown, consultant anaesthetist, and Dr. A. A. Donaldson, consultant radiologist, for their skilled assistance, in particular in the performance of the percutaneous angiograms.