New data an old puzzle: the negative association between schizophrenia and rheumatoid arthritis

S.H. Lee, E.M. Byrne, C. M. Hultman, A. Kähler, A.A.E. Vinkhuyzen, S. Ripke, O.A. Andreassen, T. Frisell, A. Gusev, X. Hu, R. Karlsson, V. Mantzioris, J.J. McGrath, D. Mehta, E.A. Stahl, G. Zhao, K.S. Kendler, P.F. Sullivan, A.L. Price, M. O'DonovanY. Okada, B. J. Mowry, S. Raychaudhuri, N.R. Wray, D. Posthuma