Carey, J., 2019. News Feature: Interested in gauging a population’s health?
Look to sewage. Proceedings of the National Academy of Sciences, 116(13), pp.5836-5839.
[doi.org]

Yours,

Paul H.


"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)