Mapara Edwin, Morley David
Teaching-aids At Low Cost, St Alban's, United Kingdom.
PLoS Med. 2004 Dec;1(3):e43. doi: 10.1371/journal.pmed.0010043.
In Botswana, explicit color photos of people with AIDS have been used to spread knowledge, with the aim of saving lives
在博茨瓦纳,曾使用艾滋病患者的清晰彩色照片来传播知识,目的是拯救生命。