[1] Univ KwaZulu Natal, Coll Hlth Sci, Antimicrobial Res Unit, ZA-4041 Durban, South Africa
[2] Univ Technol Sydney, Grad Sch Hlth, Ultimo, NSW 2007, Australia
[3] Univ Utah, Coll Pharm, Salt Lake City, UT 84112 USA
[4] Huachiew Chalermprakiet Univ, Fac Pharmaceut Sci, Samut Prakan 10540, Thailand
[5] Cardiff Univ, Ctr Med Educ, Sch Med, Cardiff CF14 4XN, Wales
[6] Soc Italiana Med Gen Cure Primarie, Italian Coll Gen Practitioners & Primary Care SIM, I-50142 Florence, Italy
[7] Rostock Univ, Inst Gen Practice, Med Ctr, D-18055 Rostock, Germany
[8] Reckitt Benckiser Healthcare Ltd, Slough SL1 3UH, Berks, England