ABC of subfertility: male subfertility

Two errors crept into in this article by Anthony Hirsh (20 September, pp 669-72). Firstly, we incorrectly inserted an extra word in the caption to the figure on page 670; the caption should read: “Autosomal Robertsonian translocations may be associated with poor sperm quality and subfertility.” Secondly, we made a dog's dinner of the caption to the figure on page 671. The photograph in fact shows a “microsurgical vasovasostomy for vasectomy reversal.”