An Unusual Headache
BMJ 349:g5602, Graham, U.M.,et al, 2014
Clinicalpathologic Conference, Vitamin B12 Deficiency due to Pernicious Anemia
NEJM 366:1626-1633, Case 13-2012, 2012
Lingual Infarction in Cranial Arteritis
JAMA 243:2422-2423, Sofferman,R.A., 1980