1. SAMPLE SELECTION AND GENERAL PROPERTIES

2. THE QUESTIONNAIRE
2.1. Option 1: I did publish a refereed paper
2.2. Options 2 and 3: Insufficient data quality and/or quantity
2.3. Option 4: Inadequate ESO tools
2.4. Option 5: Null or inconclusive results
2.5. Option 6: Lack of PI resources
2.6. Option 7: Science case no longer interesting
2.7. Option 8: I am still working on the data
2.8. Option 9: I published a non-refereed paper
2.9. Option 10: Other

3. CONSIDERATIONS ON OBSERVING MODE AND ALLOCATED TIME

4. CONCLUSIONS