RT Journal Article SR Electronic T1 Service News JF Journal of The Royal Naval Medical Service JO J. Roy. Nav. Med. Serv. FD BMJ Publishing Group Ltd SP 128 OP 130 DO 10.1136/jrnms-75-128 VO 75 IS 2 YR 1989 UL http://jrnms.bmj.com/content/75/2/128.abstract AB