1. But John Hess, a hematologist at the University of Maryland School of Medicine in Baltimore and the former head of the U.S. Army's blood product development program, isn't sanguine.

2. "This [study] is extremely important, " says hematologist Alex Felice of the University of Malta and Mater Dei Hospital, who has studied the genetics of a related blood disorder.

3. Your symptoms may first prompt you to see your family doctor or a general practitioner. However, you may then be referred to a doctor who specializes in blood disorders (hematologist).

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4. But according to Dr. Kwaku Ohene-Frempong, an attending hematologist at the Children's Hospital of Philadelphia, when it comes to quality of life, "we have not made enough progress."

5. Two Chinese scientists, material expert Shi Changxu and hematologist Wang Zhenyi, won China's top science award.

6. "If there was a suitable platelet substitute, that would be a tremendous achievement for clinical medicine, " says hematologist Marcel Levi of the University of Amsterdam in the Netherlands.

7. To determine whether HPCs actually harbor the virus in infected people, Collins's team worked with a hematologist who removed HPCs from the bone marrow of 15 HIV-infected volunteers.

8. In the film, Ethan Hawke (left), plays a vampire hematologist who grows sympathetic with the human resistance.

9. "They have some potentially exciting, preliminary work, " says hematologist Paul Ness of the Johns Hopkins Medical Institutions in Baltimore, Maryland.

10. "I was quite impressed with the science, " adds hematologist Morris Blajchman of McMaster University in Hamilton, Canada.

11. This definitive resource is the one comprehensive book needed by every practicing hematologist.

12. Although your regular doctor may continue to be your personal physician, most often he or she will temporarily turn your treatment over to an oncologist or hematologist for active treatment.