Returns a data frame (in tibble format) containing the summary iformation about a GWAS study. The data frame has the following data structure:
studyId: Character. Study ID.
traitReported: Character. Reported trait.
source: Character. Source.
traitEfos: Character. Trait EFO ID.
pmid: Character. PubMed ID.
pubDate: Character. Publication date.
pubJournal: Character. Publication journal.
pubTitle: Character. Publication title.
pubAuthor: Character. Publication author.
hasSumstats: Character. Indicates if the study has summary statistics.
ancestryInitial: Character. Initial ancestry.
nInitial: Character. Initial sample size.
nReplication: Character. Replication sample size.
traitCategory: Character. Trait category.
numAssocLoci: Character. Number of associated loci.
nTotal: Character. Total sample size.