pubmed-article:6503252 | pubmed:abstractText | Methods of determining blood flow in bone are described and compared. Those based on clearances of bone-seeking tracers are inaccurate because of the variation of extraction with flow. The use of radioactive microspheres is the best available technique for measurements in animals; applications of this method are given. The washout of diffusible tracers is of limited use. | lld:pubmed |