TY - JOUR AU - Ertl, M; Altmann, M; Torka, E TI - The retrobulbar “spot sign” as a discriminator between vasculitic and thrombo-embolic affections of the retinal blood supply JO - Ultraschall Med VL - 33 PY - 2012 DO - 10.1055/s-0032-1312925 L3 - PubMed-ID: 23023446 SP - E263 EP - 267 N1 - et al. ER -