Correction - sexist dating stereotypes - 21.02.20

An article (“Sexist dating stereotypes are never helpful, so this survey has left a bad taste in our mouths”, 21 February 2020) incorrectly attributed a survey to Mars Wrigley. The survey in question was in fact run by FromMars, which is not in any way connected with Mars Wrigley. We apologise for the inaccuracy and for any confusion caused.