PT - JOURNAL ARTICLE AU - Gray, J A Muir TI - Practical Guide for Medical Officers for Environmental Health AID - 10.1136/jme.7.3.160 DP - 1981 Sep 01 TA - Journal of Medical Ethics PG - 160--160 VI - 7 IP - 3 4099 - http://jme.bmj.com/content/7/3/160.1.short 4100 - http://jme.bmj.com/content/7/3/160.1.full SO - J Med Ethics1981 Sep 01; 7