Survey mode effects linked to unit nonresponse and screening procedures were estimated in a study of self-reported tobacco, alcohol, and illicit drug use. Two samples of the same population were drawn ...

SHANGHAI, China – Scientists using DNA samples have doubled their estimates of the wild panda population in a nature sanctuary in China, in a finding they say bodes well for the survival of one of the ...

Conflicting findings are often reported in microbiome association studies, which could be due to insufficient sample sizes and numerous confounders. A new study, utilizing two large-scale human ...