Central Poststroke Pain & Wallenberg's Lateral Medullary Infarction:Freq, Charact & Determinants in 63 PtsNeurol 49:120-125, MacGowan,D.J.L.,et al, 1997
Acute Intermittent PorphyriaJAMA 264:1290-1293, 1315-13161990., Sack,G.H., 1990