Online toegang naar https://academic.oup.com/login?auth=uushibboleth&url=https%3A%2F%2Facademic.oup.com%2Flogin%3Fauth%3Dshibboleth&url=https%3A%2F%2Facademic.oup.com%2Flogin%3Fauth%3Dshibboleth&url=https%3A%2F%2Facademic.oup.com%2Fmilmed%2Farticle%2F184%2F11-12%2F731%2F5477443
