Number needed to treat (NNT) in clinical literature: an appraisal
Mendes D, Alves C, Batel Marques F
BMC Medicine 2017;15:112. DOI: 10.1186/s12916-017-0875-8
2017 https://bmcmedicine.biomedcentral.com/articles/10.1186/s12916-017-0875-8