1.
A large focus of naturally acquired Plasmodium knowlesi infections in human beings
by Singh, Balbir
The Lancet (British edition), 2004, Vol.363 (9414), p.1017-1024

3.
Monkey malaria in man
by Abegunde, AT
The Lancet (British edition), 2004, Vol.364 (9441), p.1217-1217
