APA   Click to copy
Ernst, P. (2009). Hematopoietic Stem Cells.

Chicago/Turabian   Click to copy
Ernst, Patricia. “Hematopoietic Stem Cells” (2009).

MLA   Click to copy
Ernst, Patricia. Hematopoietic Stem Cells. 2009.

@article{patricia2009a,
  title = {Hematopoietic Stem Cells},
  year = {2009},
  author = {Ernst, Patricia}
}