Ho, S
Woodford, K
Kukuljan, S
Pal, S
Article History
Received: 14 March 2014
Revised: 9 May 2014
Accepted: 24 May 2014
First Online: 2 July 2014
Competing interests
: Dr Sonja Kukuljan is a salaried employee of A2 Dairy Products Australia. Professor Keith Woodford consults to A2 Corporation as an independent scientific adviser. The remaining authors declare no conflict of interest.