Spurgeon, D. (2002). Chickenpox vaccine may reduce risk of shingles. BMJ.
Citação norma ChicagoSpurgeon, David. Chickenpox Vaccine May Reduce Risk of Shingles. BMJ, 2002.
MLA CitationSpurgeon, David. Chickenpox Vaccine May Reduce Risk of Shingles. BMJ, 2002.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.