2), is the average fluid/cell velocity (since the fluid moves at the same speed as the cell), A is the cross-sectional area and R is the hydraulic resistance (i.e., the external load that resists cell/fluid movement) which, for rectangular channels, is proportional to the channel length L
Lyophilized form is preferred for long-term storage
Higher doses of vitamin B12 may be used to treat a clinically recognised deficiency
B12, folate (B9), and B6 in particular play key roles in preventing birth defects, supporting fetal brain and nervous system development, and maintaining your energy and mood throughout pregnancy and postpartum
even in patients treated for years with conventional doses of folic acid, the serum levels of vitamin B12 are found to be low
Age and Weight Considerations Age and weight are also important for healthcare providers when setting B12 injection doses for adults