Protocol for designing INVITES-IN, a tool for assessing the internal validity of in vitro studies

Svendsen C, Whaley P, Vist GE, Husøy, Beronius A, Di Consiglio E, Druwe I, Hartung T, Hatzi VI, Hoffmann S, Hooijmans CR, Machera K, Robinson JF, Roggen E, Rooney AA, Roth N, Spilioti E, Spyropoulou A, Tcheremenskaia O, Testai E, Vinken M, Mathisen GH