1. Abdel-Sayed, W., Abboud, F. M., Hedwall, P. R., and Schmid, P. G., 1970, Vascular responses to prostaglandin E1 (PGE1) in muscular and cutaneous beds, Circulation 42:126 (Suppl. III).
2. Anderson, F. L., Tsagaris, T. J., and Kuida, H., 1971, Effect of prostaglandins on bovine pulmonary circulation, Fed. Proc. 30:380.
3. Änggård, E., 1966, The biological activities of three metabolites of prostaglandin E1, Acta Physiol. Scand. 66:509.
4. Änggård, A., 1969, The effect of prostaglandins on nasal airway resistance in man, Ann. Otol. Rhinol. Laryngol. 78:657.
5. Änggård, E., and Bergström, S., 1963, Biological effects of an unsaturated trihydroxy acid (PGF2α) from normal swine lung, Acta Physiol. Scand. 58:1.