SMALL DOSES OF ROCURONIUM VERSUS MIVACURIUM FOR SHORT PROCEDURES STUDY OF THE HAEMODYNAMICS AND RESPIRATORY CHANGES DURING TOTAL INTRAVENOUS ANAESTHETIC USING FENTANYL AND KETAMINE EFFICACY AND SAFETY OF PREEMPTIVE ANALGESIA USING NON- STEROIDAL ANTI- INFLAMMATORY DRUGS IN PEDIATRICS PHARMACOLOGICAL _AND CLINICAL STUDY OF THE NEW NON-DEPOLARIZING MUSCLE RELAXANT VECURONIIJM (ORG NC 45 NORCURON