[1] CHILDRENS HOSP & MED CTR,POB C-5371,SEATTLE,WA 98105
[2] UNIV WASHINGTON,SCH PUBL HLTH & COMMUNITY MED,DEPT EPIDEMIOL,SEATTLE,WA 98195
[3] UNIV WASHINGTON,DEPT PEDIAT,SEATTLE,WA 98195
[4] UNIV WASHINGTON,DEPT FAMILY PRACTICE,SEATTLE,WA 98195
[5] TACOMA GEN HOSP,TACOMA,WA