Related references
Note: Only part of the references are listed.
Article
Public, Environmental & Occupational Health
Understanding variation in disease risk: the elusive concept of frailty
Odd O. Aalen et al.
INTERNATIONAL JOURNAL OF EPIDEMIOLOGY (2015)
Article
Immunology
Herd Immunity'': A Rough Guide
Paul Fine et al.
CLINICAL INFECTIOUS DISEASES (2011)