PT - JOURNAL ARTICLE AU - DeFriese, Gordon H. TI - Introduction AID - 10.18043/ncm.64.4.168 DP - 2003 Jul 01 TA - North Carolina Medical Journal PG - 168--168 VI - 64 IP - 4 4099 - http://www.ncmedicaljournal.com/content/64/4/168.short 4100 - http://www.ncmedicaljournal.com/content/64/4/168.full SO - N C Med J2003 Jul 01; 64