Human Molecular Genetics13, R91–R102 (2004)

Some errors have been found in this article on page R96 as follows. The authors apologize for these errors.

  1. Equation (2) should be changed to
  2. Equation (3) should be changed to
  3. In the sentence before equation (3), ‘If fd=fn, then’ should be changed to ‘Neglecting fd and fn, we have’

  4. The sentence following equation (3) should be deleted.