| advanced_search_terms | Clinicaltrials.gov advanced search terms | 
| clinicaltrials_count | Count number of results for a given search | 
| clinicaltrials_download | Downloads detailed information about clinical trials... | 
| clinicaltrials_search | Search for clinical trials satisfying a query | 
| gather_results | Parses results from an xml object downloaded from... | 
| parse_study_xml | Parses study information for a trial downloaded from... | 
| rclinicaltrials-package | An interface to the clinicaltrials.gov API | 
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