Liang J, Wang R, Wu H, Huang Z, Zhang R, Jiang F
. Doctors may not be prescribing oral vitamin B12 formulations because they may be unaware of this option or have concerns regarding its effectiveness Objectives: To assess the effects of oral vitamin B 12 versus intramuscular vitamin B 12 for vitamin B 12 deficiency. Selection criteria: Randomized controlled trials (RCTs) comparing the effect of oral versus IM vitamin B 12 for vitamin B 12 deficiency
Howells DW, Porritt MJ, Wong JY, Batchelor PE, Kalnins R, Hughes AJ et al (2000)
Cost differences between kits and professional injections may vary over time
Temporary portals Tumours that begin in the brain are among the most aggressive and lethal cancers, yet treatment options are limited by the BBB