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Covidien Public Limited Company is a healthcare products company. The Company is engaged in the development, manufacture and sale of healthcare products for use in clinical and home settings. The Company's brands include Kendall, Nellcor, Puritan Bennett and Valleylab, among others. It has a presence in more than 70 countries, with products sold in over 150 countries. The Company's segments include Medical Devices and United States Medical Supplies. Medical Devices includes marketing of advanced and general surgical solutions, peripheral vascular and neurovascular therapies, patient monitoring products, and airway and ventilation products. United States Medical Supplies includes products, such as nursing care, medical surgical, SharpSafety and original equipment manufacturer (OEM) products. The Company's products include Surgical Solutions, Vascular Therapies, Respiratory and Patient Care.

Microbix Biosystems Inc., a life science company, develops and commercializes proprietary biological and technological solutions for human health and wellbeing in North America, Europe, and internationally. The company manufactures diagnostic-test products, such as test-controls under the QAPs brand; viral transport medium for collection of patient samples to test for pathogens including virus causing the COVID-19 disease under the DxTM brand; Kinlytic, a biologic thrombolytic drug used to treat blood clots; and antigen products. Microbix Biosystems Inc. was founded in 1988 and is headquartered in Mississauga, Canada.

Medicenna Therapeutics Corp., an immunotherapy company, engages in the development and commercialization of Superkines and empowered Superkines for the treatment of cancer and other diseases. It develops MDNA55, an interleukin- 4 (IL-4) EC for the treatment of recurrent glioblastoma, as well as for brain tumors. The company also develops MDNA11, an enhanced version of IL-2 to activate and proliferate the immune cells needed to fight cancer; MDNA209, an IL-2 antagonist for autoimmune diseases, such as multiple sclerosis and graft versus host disease; MDNA413, a dual IL-4/IL-13 antagonist to treat cancer immunotherapies; and MDNA132, an IL-13 Superkine for solid tumors. In addition, it provides BiSKITs platform to develop designer Superkines by fusing them to other proteins, antibodies, cytokines, or other Superkines. The company is headquartered in Toronto, Canada.

PowerShares DWA Technical Leaders Portfolio (the Fund) is based on the Dorsey Wright Technical Leaders Index (the Index). The Fund seeks investment results that generally correspond to the price and yield of the Index. The Fund will normally invest at least 90% of its total assets in securities that consists of the Index and American Depositary Receipts (ADRs) based on the securities in the Index. The Index includes approximately 100 the United States-listed companies. Invesco PowerShares Capital Management LLC acts as the Fund's investment adviser.