Dip-slide: an aid to quantitative urine culture in general practice.

Abstract

BD1CALJOURNAL 343 areas of old infarction. This figure is in close agreement with that of He offered no pathological explana- tion for 64 out of 142 cases (45%) which were classified as "' primary " heart block. In the present post-mortem series 21 out of 53 cases (40%) were due to bundle branch fibrosis. The pathological basis of primary heart block is therefore bilateral bundle-branch fibrosis; the cause remains unknown, but it is certainly not due to coronary artery disease.