TO RETAIN, practice. To engage the services of an attorney or counsellor to manage a cause, at which time it is usual to give him a fee, called the retaining fee. The act by which the attorney is authorized to act in the case is called a retainer.
One explanation for the difference in the levels of catechins found in this study and others is the type of samples used. In comparative studies, leaves of Camellia sinensis 4 Discussion Table 1. Levels of catechins and caffeine in tea bags, extract, and ready-to-drink green tea.
From Wikipedia, the free encyclopedia. This article addresses effects only of tea made from the plant Camellia sinensis, including black tea, oolong tea, green tea, and white tea. It does not address effects of other plant infusions that might be called tea, including what are sometimes called  herbal tea .