RT Journal Article SR Electronic T1 The challenge of recruiting people with schizophrenia to trials JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 965 OP 965 VO 55 IS 521 A1 Sarah Cook A1 Eleni Chambers A1 Julie Coleman A1 Melanie Hart YR 2005 UL http://bjgp.org/content/55/521/965.1.abstract AB