In a recently published article on the role of the 2-week urgent referral system for suspected childhood cancer,1 Mant and Nanduri consider whether their findings, among the 35 patients referred to this system, might be representative of the wider population. We recently analysed our suspected cancer referral data for January 2009–December 2011. During this 3-year period, we received 312 such referrals. Our hospital is the main secondary care centre for paediatrics in Bristol …