1 INTRODUCTION

2 SAMPLE

3 OBSERVATIONS

4 DATA ANALYSIS
4.1 AO image processing
4.2 Orbital determination
4.3 Theoretical mass-magnitude relations

5 RESULTS
5.1 Astrometric results
5.2 Orbital elements and dynamical masses

6 DISCUSSION
6.1 Comparison to theoretical models
6.2 Higher-order multiplicity
6.3 Continued monitoring targets

7 SUMMARY