Dear Sir,

We thank Dr Mark Wong and A/Prof Tang Choong Leong for their interest in our article and for highlighting an error regarding the availability of magnetic resonance (MR) defaecography in Singapore. As mentioned in our article, MR defaecography provides valuable information on the anorectum without the risks of radiation exposure. Although this test is not widely available, it is performed in certain centres in Singapore. We apologise for the error.

Yours sincerely,