TY - JOUR T1 - I. INTRODUCTION JF - Pharmacological Reviews JO - Pharmacol Rev SP - 3 LP - 6 VL - 6 IS - 1 AU - OTTO LOEWI Y1 - 1954/03/01 UR - http://pharmrev.aspetjournals.org/content/6/1/3.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -