IUPHAR-DB: updated database content and new features. - Joanna L. Sharman; Helen E. Benson; Adam J. Pawson; Veny Lukito; Chidochangu P. Mpamhanga; Vincent Bombail; Anthony P. Davenport; John A. Peters; Michael Spedding; Anthony J. Harmar; NC-IUPHAR (Nucleic Acids Res., 2013)