[Peer review, preprints and predatory journals. Publication ethics versus publicity applied to medical science]

The publication of medical articles has become increasingly complex, linked to multiple factors. It poses difficult problems for both authors and journals themselves. This Editorial addresses current and controversial issues: peer review, preprints as a new way of disseminating knowledge, the growing number of publications without peer review and its variants, and the risks of predatory publications. The article proposes future guidelines as an editorial policy of MEDICINA. The controversy continues, and surely the passage of time will place our proposal in a changing scientific world like knowledge itself.