Sommerfelt-Pettersen, Jan Sossai, Paolo Soundarya Chowdary, Mandava, Department of Public Health Dentistry, Narayana Dental College and Hospital, Chinthareddypalem, Nellore, AP, India Sprundel, Marc Van Srinivasulu, Gomasani, Narayana Dental College & Hospital, Chinthareddypalem, Nellore. AP Srivastava, Manjari Sriwijitalai, Won Stahlmann, Ralf Stańczak, Joanna Stannard, Sue Stannard, Suzanne Stannard, Suzanne, Medical Adviser, Norwegian Centre for Maritime Medicine/International Maritime Health Association, Bergen, Norway Stannard, Suzanne Louise Stannard, Suzanne Louise, Norwegian Centre of Maritime Medicine, Haukeland University Hospital, Norway Stannard, Suzanne Stańska, Wiktoria Stępień, Małgorzata Steve, Jean-Marie Stewart, Derek Stilz, Imogen R. Stojanović, Drazen Stoll, Elisabeth Storholmen, Tore Christian Bjorsvik Stosse-Guevel, Catherine Stranieri, Giuseppe