Medicine in Chinese cultures: comparative studies of health care in Chinese and other societies.

be done with radioisotope angiogra¬ phy—a technique that will be of rela¬ tively little value in the detection of tumors as compared to CT scans but that can be especially helpful in the study of occlusive cerebrovascular dis¬ eases. Neither diagnostic tool will re¬ place contrast angiography for fine detail of blood vessel disease or vascu¬ lar supply of tumors or malforma¬ tions. Study of DeLand's text and pictures will permit neurologists, neurosurgeons, and radiologists to assay which diagnostic methods will give the most information for the least trouble.