Editorial: JFM at 50

50 Years of Impact of Jfm

The total number of citations to papers published in 1972, 198

Editorial. At the crossroads.

EDITORIAL out at CSCS

Editorial changes at JECH.

We are delighted to take up the position of Co-Editors of the Journal of Epidemiology and Community Health. JECH is the leading international journal for original, sociallyrelevant, methodologically sound epidemiological analyses of importantpublic health problems, andwe are proud to continue the rich tradition that previous editors have started, including John Ashton, Carlos Alvarez-Dardet and...

Oxygen concentrators performance with nitrous oxide at 50:50 volume.

BACKGROUND AND OBJECTIVES Few investigations have addressed the safety of oxygen from concentrators for use in anesthesia in association with nitrous oxide. This study evaluated the percent of oxygen from a concentrator in association with nitrous oxide in a semi-closed rebreathing circuit. METHODS Adult patients undergoing low risk surgery were randomly allocated into two groups, receiving a...