PT - JOURNAL ARTICLE ED - , TI - This Week in Science AID - 10.1126/science.229.4717.911 DP - 1985 Sep 06 TA - Science PG - 911--911 VI - 229 IP - 4717 4099 - http://science.sciencemag.org/content/229/4717/911.short 4100 - http://science.sciencemag.org/content/229/4717/911.full SO - Science1985 Sep 06; 229