_dta:
  1.  New MAUDE Patient records for the current month

  obs:        71,223                          
 vars:             4                          12 Oct 2015 11:22
 size:     6,481,293                          (_dta has notes)
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              storage   display    value
variable name   type    format     label      variable label
---------------------------------------------------------------------------------------------------------------------------------------------------------
mdr_report_key  str14   %14s                  Medical Device Reporting (MDR) Report Key
patient_sequence_number
                str23   %23s                  Patient Sequence Number (from patient report table)
sequence_number_treatment
                str50   %50s                  Sequence Number||','|| Treatment -- multiple source type, separate by ';'
seqsequence_number_treatment
                float   %9.0g                 # of sequence_number_treatment
---------------------------------------------------------------------------------------------------------------------------------------------------------
Sorted by:  mdr_report_key  patient_sequence_number  seqsequence_number_treatment