caution

As the leader, Verstappen always had the advantage, but the destiny of the race was up in the air until Norris was judged to have transgressed in failing to slow for a yellow caution flag.

Dr George said she believed the EA was likely to be erring on the side of caution and public safety, adding safety standards were strict.

It was his third caution of the season, meaning he will serve a touchline ban when Brighton travel to Fulham in midweek.

"However, some of the changes were relatively modest and should raise caution regarding expectations of long-term and large changes in this patient group."

Litovitz cautioned, however, that because not all batteries have the blue dye, doctors and parents should not assume that no battery was swallowed if they don’t see that color.