The case report title ‘Pneumocystis cystoides intestinalis with pneumoperitoneum and pneumoretropeeritoneum in a patient with extensive chronic graft–versus–host disease’ by A Schulenburg et al, Bone Marrow Transplantation 1999; 24: 331-333 was incorrect. The title should be ‘Pneumatosis cystoides intestinalis with pneumoperitoneum and pneumoretroperitoneum in a patient with extensive chronic graft–versus–host disease’ by A Schulenburg et al.

In the paper ‘Cytomegalovirus disease in adult marrow transplant recipients receiving ganciclovir prophylaxis: a retrospective study’ by H Maltazou et al, Bone Marrow Transplantation 1999; 24: 665–669, the name of the first author was incorrectly spelt. The correct spelling is H Maltezou. The name of the fifth listed author was also spelt incorrectly. R Champlain should read R Champlin.