== Tables to generate ==
* Clinical ID -> All Table 1 to 1 trial info: row_headers1 = ['nct_id', 'brief title', 'oversight authority', 'brief summary', 'detailed description', 'overall status', 'start date', 'completion date', 'phase', 'study type', 'study design', 'condition', 'intervention type', 'intervention name', 'eligibility description','eligibility gender', 'eligibility min age', 'eligibility max age', 'verification date', 'lastchanged date', 'firstreceived date', 'has expanded access'] Table 2: * (Clinical ID) row_headers2 = ['nct_id', Agency Name -> Agency Class'sponsor agency', 'sponsor class', 'lead (Y/N)or collaborator'] Table 3: row_headers3 = ['nct_id', 'facility name', 'city', 'state', 'zip', 'country']* (Clinical ID) -> Table 4: row_headers4 = ['nct_id', 'MeSH Termterm']* (Clinical ID) -> Investigator Table 5: row_headers5 = ['nct_id', 'keyword']