[1] Univ Dublin Trinity Coll, Dublin 2, Ireland
[2] SUNY Buffalo, Buffalo, NY 14260 USA
[3] E Carolina Univ, Greenville, NC USA
[4] Colgate Palmolive, Geneva, Switzerland
[5] Med Coll Georgia, Augusta, GA 30912 USA
[6] Harvard Univ, Sch Dent Med, Boston, MA 02115 USA
[7] Sunstar Amer, Chicago, IL USA
[8] Univ Zimbabwe, Harare, Zimbabwe
[9] Johnson & Johnson Consumer Prod Inc, Skillman, NJ 08558 USA
[10] Delta Dent Plan Minnesota, Minneapolis, MN USA
[11] Univ Copenhagen, Copenhagen, Denmark
[12] Asian Inst Med Sci & Technol, Kuala Lumpur, Malaysia
[13] Univ N Carolina, Chapel Hill, NC USA
[14] Int Med Univ, Kuala Lumpur, Malaysia
[15] Bristol Dent Assoc, London, England
[16] Procter & Gamble Co, Mason, OH USA