_dta:
  1.  by Jean Roth , jroth@nber.org , 6 Apr 2017
  2.  RPSRyyQq.TXT contains report sources for the event (0 or more).

primaryid:
  1.  Unique number for identifying a FAERS report.
  2.  This is the primary link field (primary key) between data files (example:
      31234561).
  3.  This is a concatenated key of Case ID and Case Version Number.
  4.  It is the Identifier for the case sequence (version) number as reported
      by the manufacturer.

caseid:
  1.  Number for identifying a FAERS case (example. 3123456).
  2.  A case consists of one or more versions.
  3.  A follow-up version (that is, the newest/latest version received by FDA)
  4.  will have the same CASE number as the initial/oldest version.

rpsr_cod:
  1.  Code for the source of the report. (See table below.)
  2.  CODE MEANING_TEXT
  3.  ---- ------------
  4.  FGN Foreign
  5.  SDY Study
  6.  LIT Literature
  7.  CSM Consumer
  8.  HP Health Professional
  9.  UF User Facility
 10.  CR Company Representative
 11.  DT Distributor
 12.  OTH Other
 13.  NOTE: The source from the latest version of a case is provided.
 14.  If there is more than one source, the codes will be line listed.

  obs:        25,007                          
 vars:             3                          6 Apr 2017 23:57
 size:       275,077                          (_dta has notes)
-------------------------------------------------------------------------------
              storage   display    value
variable name   type    format     label      variable label
-------------------------------------------------------------------------------
primaryid       long    %12.0g              * Unique number for identifying a
                                                FAERS report
caseid          long    %12.0g              * Number for identifying a FAERS
                                                case (example. 3123456)
rpsr_cod        str3    %9s                 * Code for the source of the report
                                            * indicated variables have notes
-------------------------------------------------------------------------------
Sorted by: primaryid  rpsr_cod