Dr Daniel Farewell will kindly be presenting a methodology seminar on "Non-ignorable drop out in longitudinal studies" including a demonstration of R package 'slim', as part of our Biostatistics seminar series at Arthritis Research UK Primary Care Centre, Keele University. Monday 15th May 1-3pm in Dinwoodie lecture theatre, Primary care sciences, David Weatherall building, Keele University You may leave the list at any time by sending the command SIGNOFF allstat to [log in to unmask], leaving the subject line blank.