Table of Content.- I: Free Papers I.- Comments on the Significance of Economic Arguments in the Health-Care Sector.- Comparative Pharmacokinetics of Fentanyl and Alfentanil.- Pharmacokinetic Data of Fentanyl, Midazolam and Enflurane as Obtained by a New Method for Arbitary Schemes of Administration.- Disposition of Alfentanil, a New Analgesic Agent, in Man.- Effect of Spinal Morphine on the Electrophysiological Activity of the Ureter in the Rabbit.- Spinal Block with Lignocaine and Fentanyl for Ender Nailing in the Elderly.- Epidural Morphine in Obstetric Analgesia.- Ventilatory Effects of Epidural Diamorphine A Comparison with Epidural Lignocaine.- Effects of Epidural Analgesia with Etidocaine and Morphinics on Endocrine function.- Respiratory Depression with Buprenorphine: Onset Time and Reversal.- Effects of Almitrine on Respiratory Depression During Enflurane Anaesthesia.- Diazepam Reduces Lower Oesophageal Sphincter Pressure.- Monitoring of the Electroencephalogram and Electromyogram During Anaesthesia.- Heterozygotes for Atypical Cholinesterase.- Intubating Conditions with Org NC 45: A Comparison with Suxamethonium and Pancuronium.- Reversibility by Neostigmine of an Org NC 45 Neuromuscular Blockade Under Halothane and Enflurane Anaesthesia in the Cat.- Drug Interactions with Local Anaesthetics.- The Effect of Some Premedicants on the Cardiovascular System.- Althesin and Alfentanyl for Minor Surgery.- II: Invasive and Non-invasive Circulatory Measurement.- Indices of Myocardial Performance.- Direct Measurement of Arterial Pressure and Derived Variables.- Direct Measurement of Left Ventricular Pressure in Man.- Swan-Ganz Catheterisation Application, Interpretation and Limitations.- Coronary Blood Flow Inert Gas Methods.- Coronary Sinus Catheterisation and Measurement of Coronary Sinus Blood Flow by the Continuous Thermodilution Method.- Physical Principles of Ultrasonics in Cardiovascular Measurements.- Clinical Applications of Echocardiography in Anaesthlc,