The object of his experiment ... a piece of copper, so as to form a galvanic couple ; for zinc, when unconnected with a less oxidizable metalj is soon covered with a crust of oxide, so that ...

Clinical and Radiographic Outcomes of Four Different Treatment Strategies in Patients With Early Rheumatoid Arthritis (the Best Study): A Randomized, Controlled Trialfrom Arthritis & Rheumatism ...