Genetic capsid modifications allow efficient re-targeting of adeno-associated virus type 2 (vol 5, pg 1052, 1999)

Nature Med. 5, 1052– 1056 (1999). On page 1052, the last two column headings in Table 1 lacked the correct superscripting. The correct column headings are "particles/mla" and A20+capsids/mlb." On page 1053, the column headings for Table 2 were shifted. The correct table is printed below. We regret these errors.