Enlace original:
https://apps.who.int/iris/handle/10665/60430
Orlov, V. S
,
Semashko, I. N
,
World Health Organization. Malaria Action Programme
,
[Malaria stratification as a tool in developing the strategy and tactics for modern long-term malaria control programmes / by V. S. Orlov & I. N. Semashko]