Home > Public Resources > Trauma Blog > 2005 - Summer > Join an ISTSS SIG Join an ISTSS SIG ISTSS July 1, 2005 Interest in the ISTSS Special Interest Groups grows each year. Visit the SIG page on this site to view a list of 20 current SIGs. Contact a SIG chair, listed under individual SIGs, to join a Special Interest Group. Or contact Leslie Morland, committee chair, at [email protected].