Vitamin D deficiency can occur for a number of reasons: You don't consume the recommended levels of the vitamin over time. This is likely if you follow a strict vegan diet, because most of the natural sources are animal-based, including fish and fish oils, egg yolks, fortified milk, and beef liver.
NP_032898.2. Tissue plasminogen activator (abbreviated tPA or PLAT) is a protein involved in the breakdown of blood clots. It is a serine protease (EC 3.4.21.68) found on endothelial cells, the cells that line the blood vessels.
TMAâs Mission Statement. The Treestand Manufacturerâs Association (TMA) is a nonprofit trade association that specifically devotes its resources to promoting treestand safety through education. It endeavors to improve treestand safety with the support of its members and also by fostering relationships with organizations with similar goals.