In the article entitled "Growth Factors for Neuronal Survival and Process Regeneration" that appeared in the November issue of the Archives (1989;46:1241-1248), a typesetting error appeared on page 1245, column 1, lines 14 through 18. The sentence read as follows: "Recently, neuronal death induced by gp120 has been shown to be mediated apparently by an increase in intracellular dependent calcium current.52" The sentence should have read as follows: "Recently, neuronal death induced by gp120 has been shown to be mediated apparently by an increase in intracellular calcium.52"