I’m just making a quick note of some recent writing.
I published a new post on the Antidotum Substack which reported on a recent paper on urine drug testing in people who use drugs.
I’ve also had some new posts about colourblindness on my 1 in 12 Substack. Those are:
- *Everyday colourblindness: the blinking problem of red-green LEDs
- *Is Boris Johnson colourblind?
- *Stars and stripes - getting it wrong with football kits
- *Bladder cancer and colour vision
- Colourblindness and cricket
In the February 2024 issue of the BJGP my Editor’s Briefing:

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