2801582 GEIS Group for Research in Sarcomas 7 2801583 GEIS Global Emerging Infections Surveillance 5 2801585 GEIS Global Emerging Infections Surveillance and Response System 4 2801591 GEIS galvanostatic electrochemical impedance spectroscopy 2 2801589 GEIS gene environmental interaction study 2 2801586 GEIS Generalized Electronic Interviewing System 2 2801584 GEIS Global Esthetic Improvement Scale 2 2801587 GEIS Gene Editing through an Intronic Selection marker 1 2801588 GEIS Generator of Explanatory Interactive Systems 1 2801567 GEIS GIST: a collaborative Spanish 1 2801568 GEIS GIST: a Spanish Group for Sarcoma Research 1 2801580 GEIS Group and the Spanish Sarcoma Group 1 2801581 GEIS Guide Health Products 1 2801590 GEIS guidelines in gastrointestinal stromal tumours 1