Volume 65, no. 12, p. 5131, column 1, line 22: Reference 12 should be deleted.
Pages 5135 and 5136, References:
Reference 12 should be deleted (it is the same as reference 3).
In reference 13, “J. A. Nade” should read “J. A. Nadel.”
In reference 17, “J. Pediatr. 98:949–955” should read “Acta Cytol. 25:631–639.”
In reference 24, “G. B. Toes” should read “G. B. Toews” and “J. P. Lynch” should be deleted.