Hun Lee, MD¹, Charalampos Lyssikatos, MD^2*, Eva Atsidaftos, MA^3*, Ellen Muir, RN^2*, Hanna Gazda, MD, PhD⁴, Alan H. Beggs, PhD^4*, Jeffrey Michael Lipton, MD, PhD³ and Adrianna Vlachos, MD³

¹Medicine, Long Island Jewish Medical Center, New Hyde Park, NY
²Hematology/Oncology and Stem Cell Transplantation, Schneider Children's Hospital, New Hyde Park, NY
³Hematology/Oncology and Stem Cell Transplantation, The Feinstein Institute for Medical Research, Schneider Children's Hospital, New Hyde Park, NY
⁴Genetics and Program in Genomics, Children's Hospital Boston, Harvard Medical School, Boston, MA

Sharon Singh, MD^1*, Sehba Dsilva, MD^1*, Jeffrey Michael Lipton, MD, PhD², Steven Ellis, PhD³ and Johnson M. Liu, MD¹

¹Department of Pediatrics, The Feinstein Institute for Medical Research, Manhasset, NY
²Hematology/Oncology and Stem Cell Transplantation, Schneider Children's Hospital, New Hyde Park, NY
³Department of Biochemistry, University of Louisville, Louisville, KY

Amelia Langston, MD¹, Jessica Neely, PA^1*, Leonard Heffner¹, D. Griffith^2*, Martha Arellano, MD¹, Gregory Esper, MD^3*, Morgan L. McLemore, MD¹, Thomas Ziegler, MD^2*, Christine Kempton, MD⁴, Rajni Sinha, MD^1*, H. Jean Khoury, MD¹ and Elliott Winton¹

¹Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA
²Department of Medicine, Emory University School of Medicine, Atlanta, GA
³Department of Neurology, Emory University School of Medicine, Atlanta, GA
⁴Department of Hematology and Medical Oncology, and Department of Pediatrics, Emory University School of Medicine, Atlanta, GA

Bartlomiej P Przychodzen^1*, Monika Jasek^1*, Sandra P Smieszek^1*, Anna Malgorzata Jankowska^1*, Christine O'Keefe, PhD^1*, Ronald Paquette, MD² and Jaroslaw P. Maciejewski, MD, PhD¹

¹Experimental Hematology and Hematopoiesis Section, Taussig Cancer Center, Cleveland Clinic, Cleveland, OH
²Dept. of Med., UCLA, Los Angeles, CA

Geraldine Aubert, PhD^1*, Mark Hills, PhD^1*, Carol Cremin, MSc, CCGC^2*, Irma Vulto^1*, Barbara McGillivray, MD, FRCPC, FCCMG^3* and Peter M. Lansdorp, MD, PhD¹

¹BC Cancer Research Centre, Terry Fox Laboratory, Vancouver, BC, Canada
²Hereditary Cancer Program, British Columbia Cancer Agency, Vancouver, Canada
³Department of Medical Genetics - Hereditary Cancer program - Room C234, BC Children's Hospital, Vancouver, BC, Canada

Anne-Sophie Fröjmark^1*, Jitendra Badhai^1*, Jens Schuster^1*, Joakim Klar^1*, Maria Thuvesson^1*, Steven Ellis, PhD² and Niklas Dahl^1*

¹Genetics and Pathology, Uppsala University, Uppsala, Sweden
²Department of Biochemistry, University of Louisville, Louisville, KY

Takuya Kamio, MD, PhD^1*, Etsuro Ito, MD, PhD¹, Akira Ohara, MD², Yoshiyuki Kosaka, MD.PhD^3*, Masahiro Tsuchida, MD⁴, Hideo Mugishima, MD, PhD⁵, Hiromasa Yabe, MD^6*, Akira Morimoto, MD, PhD^7*, Shouichi Ohga, MD, PhD^8*, Hiroshi Yagasaki, MD.PhD^9*, Fumio Bessho, MD, PhD^10*, Tatsutoshi Nakahata, M.D., Ph.D.¹¹ and Seiji Kojima, MD, PhD^9*

¹Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
²Department of Pediatrics, Toho University, Tokyo, Japan
³Department of Hematology and Oncology, Kobe Children's Hospital, Kobe, Japan
⁴Department of Pediatrics, Ibaraki Children's Hospital, Mito, Japan
⁵Department of Pediatrics, Nihon University School of Medicine, Tokyo, Japan
⁶Department of Cell Transplantation, Tokai University School of Medicine, Isehara, Japan
⁷Department of Pediatrics, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
⁸Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
⁹Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
¹⁰Department of Pediatrics, Kyorin University School of Medicine, Tokyo, Japan
¹¹Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan

Jalila Chagraoui, PhD¹, Josee Hebert, MD², Simon Girard^3* and Guy Sauvageau, MD, PhD⁴

¹Laboratories of Molecular Genetics of Hematopoietic Stem Cells, Institute for Research in Immunology and Cancer (IRIC), Montreal, QC, Canada
²2Department of Medicine and Division of Hematology and Leukemia Cell Bank of Quebec, Maisonneuve-Rosemont Hospital, Montreal, QC, Canada
³Laboratories of Molecular Genetics of Hematopoietic Stem Cells, Institute for Reserch in Immunology and Cancer (IRIC), QC, Canada
⁴Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada

Paola Quarello^1*, Emanuela Garelli^1*, Adriana Carando^1*, Maria Francesca Campagnoli^1*, Alfredo Brusco^2*, Irma Dianzani^3* and Ugo Ramenghi⁴

¹Dipartimento di Scienze Pediatriche, Università di Torino, Torino, Italy
²Dipartimento di Genetica, Biologia e Chimica Medica, Università degli Studi di Torino, Torino, Italy
³Dipartimento di Scienze Mediche, Università del Piemonte Orientale, Novara, Italy
⁴Dipartimento di Scienze Pediatriche, Università degli Studi di Torino, Torino, Italy

Zhong-Tao Xin, PhD^1*, Rodrigo Calado, MD, PhD², Sharon A Savage, MD, FAAP³, Peter M Lansdorp^4*, Neal S Young, MD^5* and Hinh Ly, PhD¹

¹Department of Pathology, Emory University, Atlanta, GA
²National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD
³Division of Cancer Epidemiology and Gene, National Cancer Institute, Bethesda, MD
⁴Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, BC, Canada
⁵National Institutes of Health, National Heart, Lung, and Blood Inst., Bethesda, MD

Isabelle Fleury, MD¹, Sylvie Provost, M.Sc.^1*, Claude Belisle, M.Sc.^1* and Lambert Busque, MD²

¹Hematology, Hôpital Maisonneuve-Rosemont and University of Montreal, Montreal, QC, Canada
²Hematology, Maisonneuve-Rosemont Hospital and University of Montreal, Montreal, QC, Canada

Dagmar Pospisilova, MD^1*, Radek Cmejla, PhD^2*, Jana Cmejlova, PhD^2*, Helena Handrkova^2*, Jan Stary, MD, PhD^3* and Zdenka Cerna, MD^4*

¹Pediatrics, Palacky University and University Hospital Olomouc, Olomouc, Czech Republic
²Institute of Hematology and Blood Transfusion, Prague, Czech Republic
³Dept of Pediatric Hematology and Oncology, 2nd Medical School, Charles University Hospital Motol, Prague, Czech Republic
⁴Pediatrics, Charles University Hospital Plzen, Plzen, Czech Republic

Stacie Stone, Ph.D.^1*, Alexandra Sobeck, Ph.D.^1*, Igor Landais, Ph.D.^1*, Weidong Wang, Ph.D.^2* and Maureen Hoatlin, PhD¹

¹Biochemistry and Molecular Biology, Oregon Health & Science University, Portland, OR
²Laboratory of Genetics, National Institute on Aging, National Institutes of Health, Baltimore