1. ^{{cite journal |vauthors=Tsuda T, Wong D, Dolovich J, Bienenstock J, Marshall J, Denburg JA |title=Synergistic effects of nerve growth factor and granulocyte-macrophage colony-stimulating factor on human basophilic cell differentiation |journal=Blood |volume=77 |issue=5 |pages=971–9 |date=March 1991 |pmid=1995103 |doi= |url=http://www.bloodjournal.org/cgi/pmidlookup?view=long&pmid=1995103}}
2. ^{{cite book |author=Cotran, Ramzi S. |author2=Kumar, Vinay |author3=Fausto, Nelson |author4=Nelso Fausto |author5=Robbins, Stanley L. |author6=Abbas, Abul K. |title=Robbins and Cotran pathologic basis of disease |publisher=Elsevier Saunders |location=St. Louis, Mo |year=2005 |pages=621 |isbn=0-7216-0187-1 |oclc= |doi= |accessdate=}}
3. ^{{cite book |author=Talpaz, Moshe |author2=Kurzrock, Razelle |title=Molecular Biology in Cancer Medicine |edition=2nd |publisher=Taylor & Francis Group |location=London |year=1999 |pages=81 |isbn=1-85317-676-1 |oclc= |doi= |accessdate=}}