Acknowledgments
This study was supported in part by the William and Judy Higgins Trust of the Cancer Research and Treatment Fund, Inc., New York, NY, USA. We acknowledge and thank Paul Christos, Division of Biostatistics and Epidemiology, Department of Healthcare Policy and Research for statistical advice and Vasilios Avlonitis, Department of Nuclear Medicine for technical assistance.
Richard T. Silver. MD designed the study, cared for the patients, reviewed smears, analyzed data and wrote the paper.
Stefani Gjoni collected specimen, analyzed data and wrote the paper.
Potential conflict of interest:
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