What is the comprehensive interdisciplinary research plan designed by a multinational team of biologists, social scientists, epidemiologists, and statisticians, spanning Canada and various countries, with the objective of investigating and elucidating both biological and social determinants contributing to the prevalence of chronic diseases among Indigenous Peoples in Canada? The study involves conducting extensive in-depth interviews within the territories of First Nations, Inuit, and Métis populations, alongside the collection of blood and saliva samples for genomic analyses. What are the specific methodologies, ethical considerations, and expected outcomes of this research initiative, and how does the collaboration intend to bridge biological and social perspectives to gain a holistic understanding of the factors influencing chronic diseases in these Indigenous communities?