Semi-recumbent body position fails to prevent healthcare-associated pneumonia in Vietnamese patients with severe tetanus. - Loan, H; Parry, J; Nga, N; Yen, L; Binh, N; Thuy, T; Duong, N; Campbell, J; Thwaites, L; Farrar, J; Parry, C (Transactions of the Royal Society of Tropical Medicine and Hygiene, 2012)