Gomes L, Morato-Conceicao Y, Gambati A, et al. Heliyon. 2020; 6 (2) : e03369.

Chirwa T. London School of Hygiene & Tropical Medicine. 2001;

Gordon-Napier G. University of Edinburgh. 1933;

Cross H. Open University. 1996;

Innes J. University of Edinburgh. 1934;

Barnetson R. University of Edinburgh. 1977;

Qian M, Chen J, Bergquist RN, et al. Infectious diseases of poverty. 2019; 8 (1) : 86.

Kingston H. University of Edinburgh. 1890;

Ridley M. University of London. 1980;

Koch W. University of Edinburgh. 1895;