Most probability-based political and social surveys of the general public in the United States continue to be conducted by telephone. In most of these surveys, respondents are interviewed only once.

To support the validation and verification of new assays and to challenge the existing assays in oncology testing, Thermo Fisher Scientific launches Thermo Scientific Acrometrix BCR-ABL Panel. The ...

Panel data analysis combines observations on multiple entities—such as individuals, firms or countries—over time. This longitudinal perspective permits the disentanglement of time-invariant traits ...