Table 4.

Exclusion coding schema for abstract reviews

1	Other Language than English, Spanish, Italian, French or German	Manuscript is not in English, Spanish, Italian, French or German
2	Animal-surgery	Only human patient data
3	No thyroid surgery	No reasonable prospect that the study includes data about thyroid surgery
4	Chylothorax before surgery	No reasonable prospect that chylothorax is a result of the thyroid surgery
5	No reasonable prospect that the final manuscript contains information about complications with possible chylothorax	No reasonable prospect that the study deals with chylothorax