[Publication ethics, national and international regulations].

The publication ethics cover all stages of the scientific manuscript processing. In this respect a couple of ethical assumptions must be taken into account: the research ethics (i.e. respect and safety for participating patients and healthy volunteers), and the researcher's ethics (i.e. the credibility of the researcher). International declarations, conventions, directives, and various national laws and rules regulate research ethics and researcher's ethics. These topics are to some extent included in the Vancouver regulations, which also include qualifications for fulfilling authorship.