[Guidelines and recommendations for a successful congress abstract].

The title and introduction of the abstract must clarify the intention of the study. The methods part must define the study and control groups and the statistical methods of comparison. In the results part, the data must be presented clearly, possibly in tables or graphs, interpretations must be strictly omitted. The text and the tables must not be redundant. The part discussion and/or conclusions may have the greatest variability. It is important, however, that the data presented support the interpretation and conclusion. And last but not least: the promise of too many additional studies may be unrealistic.