Digital artery diameters: an anatomic and clinical study.

This study measured the diameter of the arteries at the level of the diaphysis of the proximal phalanges of the index, long, ring, and small fingers. We measured the diameter of the vessel on ten normal arteriograms and on six amputated specimens. The larger vessel was usually on the ulnar border of the index and long fingers and on the radial border of the ring and small fingers.

Persistence of hepatitis B surface antigen in the bedbug Cimex hemipterus (Fabr.).

The fate of hepatitis B virus in the bedbug was investigated to assess this insect's potential as a vector. Colony-reared Cimex hemipterus (Fabr.) were fed once on blood positive for hepatitis B surface antigen (HBsAg).