18. “Development and clinical applications of molecular methods for the detection and molecular characterization of Circulating Tumor Cells”. Frankfurt qPCR Europe Conference, Select Biosciences, Frankfurt, September 2012

17. “Overview of analytical systems for the detection, enumeration and molecular characterization of circulating tumor cells (CTC)”. American Association of Cancer Research Annual Meeting, Los Angeles, Ca, July 2012.

16. “Molecular characterization of Circulating Tumor Cells in breast cancer”, Scripps Physics Oncology Center, The Scripps Research Institute, San Diego, CA, USA, July 2012

15. Circulating Tumor Cells as novel tumor biomarkers, 15^th Hellenic Symposium on Medicinal Chemistry, Athens, May 2012

14. “Molecular Methods for the Detection and Molecular Characterization of CTC”. Molecular Diagnostics Europe: Circulating Tumor Cells 2012, London, 10-11 May 2012

13. Detection, molecular characterization an clinical significance of circulating tumor cells, 13^th Arab Congress of Clinical Chemistry and laboratory Medicine, Marrakesh, May 2012

12. “Circulating Tumor Cells as novel tumor biomarkers” Li Ka Shing institute, St Michael’s Hospital, Toronto, Canada, April 2012.

11. “Molecular Characterization of CTCs: Expression of EMT Markers in CTCs of breast cancer patients”, Circulating Tumor Cells, Molecular Med Tri Conference 2012, San Fransisco, 21-23 Feb 2012

10. “Development and applications of multiplex molecular methods for the molecular characterization of Circulating Tumor Cells (CTCs)” 8th International Symposium on Minimal Residual Cancer (ISMRC), Osaka, Japan, (September 21 to 23, 2011).

9. “Minimal Residual Disease and Circulating Tumor Cells”. 2nd Congress of the European Society of Predictive Medicine (EUSPM), Berlin, Germany, May, 14th and 15th 2011.

8. “Molecular Characterization of Circulating Tumor Cells”. Circulating Tumor Cells: Cambridge HealthTech Institute, Philadelphia, USA, September 6-9, 2011.

7. IFCC Workshop in Basic Molecular Diagnostics Nov 30th – Dec 5th, 2010, organized by IFCC and Association of Biochemistry of Uruguay

6. Development and validation of a multiplexed PCR-coupled liquid bead array for gene expression in Circulating Tumor Cells. Planet XMAP Europe, Vienna, October 2010.

5. Debate: Circulating Tumor Cells: A useful parameter? Cellular Biomarkers of Cancer: Circulating Tumor Cells. (Educational Course). 6th European Course on Clinical Cytometry, 21-22 Sept 2010, Valencia, Spain.

4. “Development and applications of multiplex molecular methods for the molecular characterization of Circulating Tumor Cells (CTCs)” May 2010, Department of Clinical Chemistry, Medical School, University of Heidelberg, Germany (hosted by Prof.M. Neumaier, MD, PhD, Professor of Clinical Chemistry).

3. “Development and applications of multiplex molecular methods for the molecular characterization of Circulating Tumor Cells (CTCs)”, 23 Feb 2010, Department of Pathology, University of Miami, Miller School of Medicine, Miami, USA (hosted by Prof. R. Cote, MD, PhD, Professor and Chair, Department of Pathology).

2. IFCC Workshop in Basic Molecular Diagnostics, organized by IFCC and Association of Biochemistry of Syria, Damaskus, Syria, 2 December 2009.

1. “Methodology and Clinical significance of the Detection of Circulating Tumor cells in Peripheral Blood”, Dept of Pathology, University of Utah School of Medicine, USA, 23 April, 2009 (hosted by Prof. C. Wittwer, MD, PhD, ARUP Medical Director).