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Our Team


Dr. Alison Bertuch is Director of the Bone Marrow Failure Program at Texas Children's Cancer and Hematology Center. Her clinical interests include oncology, osteosarcoma, and bone marrow failure disorders. Professional Interests Basic mechanisms of telomere maintenance, structure, and function… read more
Phone: 832-824-4579


Susan Kirk has been treating children with blood disorders for over 10 years. She is a member of the immune hematology, general hematology, and hematosis and thrombosis teams. Susan treats children with many conditions including anemias, low blood counts and bleeding and clotting disorders. She is… read more
Phone: 832-822-1320
Dr. Ghadir Sasa is interested in inherited and acquired bone marrow failure disorders. During her fellowship under the mentorship of Dr. Alison Bertuch, Dr. Sasa's research focused on dyskeratosis congenita, an inherited bone marrow failure that results from abnormal telomere shortening. She is… read more
Phone: 832-824-4524

Genetic Counselor

Hannah Helber is a certified genetic counselor for the Hematology Center at Texas Children's Hospital. As a genetic counselor in the Hematology Clinic, she works to identify families at risk for inherited hematologic conditions. She provides education on genetics, as well as discussing options for… read more
Phone: 832-822-4240