âTennis players often have problems with their knees, ankles, shoulders, hips, and wrists, so they really need to spend some time on those areas to get the tension out.â. This means that youâll be more likely to keep on truckinâ if you practice your poses off the court.
Normal value ranges for vitamin B12 vary slightly among different laboratories and can range anywhere between 200 to 900 pg/mL. The general consensus is values less than 200 pg/mL constitute a B12 deficiency.
The serum vitamin B12 content, as determined by microbiologic assay, was increased above the normal range in patients with liver disease. The mechanism of the increased serum content was investigated by means of radioactive vitamin B12. The absorption, excretion and the plasma clearance were within the normal range.