[Effect of vitamin B12 on medical headaches; observations and critical notes].
D000368:Aged; D006261:Headache / Q000628:therapy*; D006801:Humans; D014805:Vitamin B 12 / Q000627:therapeutic use*
D014805:Vitamin B 12
HEADACHE/therapy; VITAMIN B12/therapeutic use
Effetto della vitamina B12 sulle cefalee mediche; osservazioni e critica.