These are the first ten (10) books in the Jack Stapleton and Laurie Montgomery series.  They are all first editions except for Contagion, which appears to be a reprint.  See the photographed copyright pages.  These books were printed between 1992 (Blindsight) and 2018 (Cure).  Robin Cook is one of the most well know medical thriller writers.  This would be a great gift for a doctor, or someone interested in the fields of Medicine or Pathology.