Fig. 1From: Need for mechanically and ergonomically enhanced tremor-suppression orthoses for the upper limb: a systematic reviewDatabase search and paper selection. a Keywords for database search are grouped in sets. Within a set the “OR” function is applied, whereas the sets A, B, C are connected by “AND” and set D by “AND NOT” function. The symbol “*” refers to a truncation symbols in the database. b Literature selection process and results from retrieving articles from the databases to the selected papers, based on the criteriaBack to article page