• In our article (10 July, p 4) on the use of the drug “dex” to prevent non-standard genitalia in girls with congenital adrenal hyperplasia, 1 in 8 at-risk pregnancies will develop as a female with CAH.
• Chicks have been found to preferentially count from left to right, but this does not “always” happen, as we reported (26 June, p 18).
• NanoGuardian technology, which can be used to authenticate medication, has been approved by the US Food and Drug Administration for use in just one drug, not generally as we implied (10 July, p 18).
