McWalter TA, Bärnighausen T, Rosner Z, Newell ML, Welte A
Epidemiology
(2010)
https://doi.org/10.1097/EDE.0b013e3181e9e978
Bärnighausen T, McWalter TA, Rosner Z, Newell ML, Welte A
Epidemiology and Infection