@misc{8200, author = {Y. Chen and S. Farooq and J. Edwards and C. Chew-Graham and D. Shiers and M. Frisher and R. Hayward and A. Sumathipala and K. Jordan}, title = {Patterns of symptoms before a diagnosis of first episode psychosis: a latent class analysis of UK primary care electronic health records}, year = {2019}, journal = {BMC Med}, volume = {17}, number = {1}, pages = {227}, issn = {1741-7015}, doi = {10.1186/s12916-019-1462-y}, }