Why 0.02%? A review of the basis for current broadscale control of rabbits in New Zealand by Nugent, G., Warburton, B., Fisher, P., Twigg, L., Cowan, P.

Variation in compulsory psychiatric inpatient admission in England: a cross-classified, multilevel analysis by Weich, S, McBride, O, Twigg, L, Duncan, C, Keown, P, Crepaz-Keay, D, Cyhlarova, E, Parsons, H, Scott, J, Bhui, K