The need for the epidemiological approach to solutions of mass phenomena has been duly emphasized and influential in a field of public health and preventive medicine. In clinical medicine, however, desirability and necessity have been recent. This book has as its purpose the bringing together of students of both clinical and preventive medicine through the medium of illustrations of epidemiological methodology.
The author is director of the Social Medicine Research Unit of the Medical Research Council, London Hospital, and much of the material utilized in the book was chosen from work with which he has been connected. The book is not a text and is not comprehensive. It consists of seven chapters on general topics, such as "Community Diagnosis," "Individual Chances," and "Completing the Clinical Picture," and each chapter has subsections, such as "Completing the Picture in Breadth," "... in Depth," and "... in Time." In many instances the material