SJÖSTRÖM STAFFAN 605,492 Spinal morphine and pethidine pharmacoKinetics and patient—controlled analgesia : [doctoral thesis] / by Staffan Sjostrom ; Uppsala University. - Uppsala : Academiae Upsaliensis, 1987. — 41 s. ; 24 cm (Acta Universitatis Upsaliensis : Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 0282-7476 ; 92) ISBN 91-554-2019-2