PT - JOURNAL ARTICLE AU - R K Philip TI - Power of numbers versus number of powers DP - 2008 Jul 01 TA - Archives of Disease in Childhood PG - 637--638 VI - 93 IP - 7 4099 - http://adc.bmj.com/content/93/7/637.short 4100 - http://adc.bmj.com/content/93/7/637.full SO - Arch Dis Child2008 Jul 01; 93