Find synonyms of an active substance

An active substance can be identified by a recommended international nonproprietary name (INN), a trade or product name, or a company code(s). To find likely synonyms, the function retrieves from CTGOV2 the field protocolSection.armsInterventionsModule.interventions. Note this is mostly manually filled, thus may not be free of errors.

Usage

ctrFindActiveSubstanceSynonyms(activesubstance = "", verbose = FALSE)

Arguments

activesubstance

An active substance, in an atomic character vector

verbose

Print number of studies found in CTGOV2 for `activesubstance`

Value

A named character vector of the active substance (input parameter), the MeSH code(s) and various names used in registered studies, or NULL if active substance was not found and may be invalid. The active substances are ordered in decreasing number of occurrence.

Examples