404. That’s an error.

The requested URL /translate_c?depth=1&hl=cs&prev=search&rurl=translate.google.cz&sl=de&sp=nmt4&u=https://medicine.plosjournals.org/perlserv/%3Frequest%3Dread-response%26doi%3D10.1371/journal.pmed.0020298&usg=ALkJrhhurvPQ-fF1mYe6jmw8ejE-dnRvTA was not found on this server. That’s all we know.