1 Subjects: “...threshold value of daily operation hours...”

2 Subjects: “...operational envelopes...”

3 Subjects: “...cyber-physical systems...”

4 Subjects: “...operations strategy...”

5 Subjects: “...intelligent systems...”

6 Subjects: “...post-operative antibiotic treatment...”

7 Subjects: “...recommendation system...”

8 Subjects: “...systems thinking...”

9 Subjects: “...system GMM...”