2 ms·

The Colour-Blind Anaesthetist (source: 1995)

• _Microft 7y ago
  The original source for this letter is at https://onlinelibrary.wiley.com/doi/10.1111/j.1365-2044.1995.tb05984.x https://onlinelibrary.wiley.com/doi/10.1111/j.1365-2044.1995...