Follow the evidence

Source links and publication dates accompany our launch articles. A research finding retains the limitations and study context described by its original publication. Animal studies, early clinical work and established care are different stages of evidence.

Credit and clarity

Republished NIH material is explicitly credited. Cover photographs are licensed NCI archival photographs used illustratively; they do not identify participants or imply endorsement. Embedded videos name their original producers. Graymedy is independent and is not affiliated with NIH, NCI or WHO.

Corrections

Send the article URL and the issue to [email protected].

General health information is educational and does not replace individual advice from a qualified healthcare professional.