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2. Effects of prostaglandin E1 on microvascular haemodynamics in progressive systemic sclerosis;Martin;BMJ,1982
3. A multi-clinical double blind study with PGE1-(cyclo-dextrin clathrate) in patients with ischemic ulcer of the extremities;Sakaguchi;VASA,1983
4. A multicenter double blind controlled study of lipo-PGE1, PGE1 incorporated in lipid microspheres, in peripheral vascular disease secondary to connective tissue disorders;Mizushima;J Rheumatol,1987
5. Intravenous prostaglandin E1 versus pentoxifylline therapy in chronic arterial occlusive disease - a controlled randomized multicenter study;Trübestein;VASA,1989