Corrections
Correction
BMJ 2020; 369 doi: https://doi.org/10.1136/bmj.m2203 (Published 03 June 2020) Cite this as: BMJ 2020;369:m2203This obituary (BMJ 2019;366:l5170, doi:10.1136/bmj.l5170) was altered at the request of the deceased’s family. This is the updated version.