This is a revision book which provides explanatory answers and teaching notes related to the questions set in the MRCP (UK) Part 1 examinations (February, June and October 1990), published by the Royal College of Physicians. The text accompanying each question gives an explanation of the Royal College answers and provides definitive lists for revision. Many of the topics are exam favourites and recur in successive papers. The index of topics at the end of the book provides an easy reference to favourite membership subjects and all MRCP candidates should find this book useful.