Corrections and Clarifications


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Science  26 Apr 1991:
Vol. 252, Issue 5005, pp. 494
DOI: 10.1126/science.252.5005.494-a


In the report "Isolation of sequences that span the fragile X and identification of a fragile X-related CpG island" by D. Heitz et al. (8 Mar., p. 1236), in the first line of figure 1 ("Chromosomal breakpoints"), PeCH should not have appeared. The breakpoint indicated corresponds to the APC5 cell line described by G. K. Suthers et al. [Am. J. Hum. Genet. 47, 187 (1990)].

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