Neurotransmitters and the fifth cranial nerve: is there a relation to the headache phase of migraine?
Moskowitz MA, Reinhard JF, Romero J, Melamed E, Pettibone DJ. Neurotransmitters and the fifth cranial nerve: is there a relation to the headache phase of migraine? Lancet. 1979 Oct 27; 2(8148):883-5.