Urine collection devices to reduce contamination in urine samples for diagnosis of uncomplicated UTI: a single-blind randomised controlled trial in primary care by Hayward, G, Mort, S, Yu, L-M, Voysey, M, Glogowska, M, Croxson, C, Yang, Y, Allen, J, Cook, J, Tearne, S, Blakey, N, Tonner, S, Sharma, V, Patil, M, Kelly, S, Butler, CC