A multi-clinical double blind study with PGE1 (a-cyclodextrin clathrate) in patients with ischemic ulcer of the extremities - Sakaguchi, S; Mischima, Y; Kamiya, K; Nashimura, A; Furukawa, K; Shionoya, S; Kawashima, M; Katsumura, T; Sakuma, A (Vasa, 1978)