Qualitative Longitudinal Research (QLR) is a dynamic and evolving methodology using time as a lens to inform study design. data collection and analysis. A key feature of QLR is the collection of data on more than one occasion. often described as waves or time points . https://www.bekindtopets.com/mega-price-Fit-Flight-Air-Dart-Flights-Pear-Green-flash-find/