Avery Anthony J, Rodgers Sarah, Franklin Bryony Dean, Elliott Rachel A, Howard Rachel, Slight Sarah P, Swanwick Glen, Knox Richard, Gookey Gill, Barber Nick, Sheikh Aziz
University of Nottingham, Nottingham.
Br J Gen Pract. 2014 May;64(622):259-61. doi: 10.3399/bjgp14X679895.