This is an old paper :   SAS Global Forum 2013 -- Pharma and Health Care Paper 166-2013 Identifying and Addressing Post-Marketing Pharmaceutical Safety Surveillance and Spontaneous Reported Events Carrie Boorse, Stuart Levine, and Kathy Schaan SAS Institute Inc., Cary, NC https://support.sas.com/resources/papers/proceedings13/166-2013.pdf   There might be a more recent solution in SAS Viya.   Koen ... View more