New risk limits for 18 pesticides in surface water Evidence suggests that existing standards for some of these substances do not sufficiently protect the ecosystem. For others, no standards exist yet or the existing standards are outdated. If these
Is screening for sexually transmitted infections as part of HIV care cost-effective in the Netherlands? Routine screening for anorectal chlamydia among HIV-positive men who have sex with men (MSM) could avert further spread of chlamydia and HIV in the total MSM population.