Pharmacologic Therapy. The type of drug treatment used depends on the type and stage of African trypanosomiasis (sleeping sickness). Management recommendations were published in The Medical Letter on Drugs and Therapeutics in March 2000 (see the Table below). Table.
Casing is the major structural component of a well. The cost of casing is a major part of the overall well cost, so selection of casing size, grade, connectors, and setting depth is a primary engineering and economic consideration.
Manufacturers of pipe, valves, fittings and other gas system components must design and test them to mandatory industry specifications. The specifications are incorporated in NFPA 58 by reference into 49 CFR Part 192, the gas pipeline safety regulations.