If Nothing Goes Wrong, Is Everything All Right? Interpret Zero Numerators (1983) [pdf] (med.mcgill.ca)

Also, some years later:

If Almost Nothing Goes Wrong, Is Almost Everything All Right? Interpreting Small Numerators (1995)

https://jamanetwork.com/journals/jama/article-abstract/38971...

If a little bit is wrong, how much is alright? Interpreting the significance of small numerators in clinical trials (2014)

https://associationofanaesthetists-publications.onlinelibrar...