Erratum to: Australas Phys Eng Sci Med DOI 10.1007/s13246-014-0304-7

The published paper contains typographical errors in a formula that summarises the relationship between SI and non-SI units for the dose area product (DAP).

On page 1, Introduction, paragraph 2, line 7, the units in the expression 1 μGy m2 = 1 cGy m2 = 0.01 Gy m2 should be replaced by 1 μGy m2 = 1 cGy cm2 = 0.01 Gy cm2.