Context:
Erratum to: Resveratrol and red wine, healthy heart
and longevity
Dipak K. Das * Subhendu Mukherjee *
Diptarka Ray
It's used when there has been a mistake made in printing/publishing the text and the correct form is then given. The plural is errata.
Errata: for 'errata' read 'erratum'.[If this goes over your head, don't worry.]
b