1. Albro, P. W. and Fishbein, L. (1969). Determination of prostaglandins by gas-liquid chromatography. J. Chromatog., 44, 443–451
2. Ambache, N. (1963). Irin and a hydroxy acid from brain. Biochem. Pharmacol., 12, 421–430
3. Ambache, N. (1966). Biological characterization of, and structure-action studies on smooth-muscle-contracting hydroxy acids. Mem. Soc. Endocrinol., 14, 19–28
4. Ambache, N., Brummer, H. C., Rose, J. G. and Whiting, J. (1966). Thin-layer chromatography of spasmogenic unsaturated hydroxy-acids from various tissues. J. Physiol. (London), 185, 77–78
5. Andersen, N. H. (1969a). Preparative thin-layer and column chromatography of prostaglandins. J. Lipid Res., 10, 316–319