[1] HARVARD UNIV,SCH MED,DEPT BIOL CHEM,CARBOHYDRATE RES LAB,BOSTON,MA 02115
[2] HARVARD UNIV,SCH MED,DEPT MED,BOSTON,MA 02115
[3] MASSACHUSETTS GEN HOSP,BOSTON,MA 02114
[4] EUNICE KENNEDY SHRIVER CTR MENTAL RETARDAT INC,WALTHAM,MA 02254
[5] US ARS,POISONOUS PLANT RES LAB,LOGAN,UT 84321