PT - JOURNAL ARTICLE ED - , TI - APPOINTMENTS AID - 10.1126/science.163.3868.661 DP - 1969 Feb 14 TA - Science PG - 661--661 VI - 163 IP - 3868 4099 - http://science.sciencemag.org/content/163/3868/661.short 4100 - http://science.sciencemag.org/content/163/3868/661.full SO - Science1969 Feb 14; 163