leaching. Phosphate leached from guano phosphatizes the underlying rocks in some areas, forming apatite where the host rock is limestone and forming aluminum- or aluminum-iron-phosphate minerals where the underlying rock is a silicate. Individual deposits of both igneous apatite and marine phosÂ­
Medicare Part B (Medical Insurance) covers diagnostic hearing and balance exams if your doctor or other health care provider orders these tests to see if you need medical treatment. Medicare doesn't cover routine hearing exams, hearing aids, or exams for fitting hearing aids.
Part B, even if Medicare didnât pay for the transplant. Oral cancer drugs: Medicare helps pay for some cancer drugs you take by mouth if the same drug is available in injectable form or is a prodrug of the injectable drug. As new oral anti-cancer drugs become available, Part B may cover them. Oral anti-nausea drugs: Medicare helps pay for oral anti-nausea drugs used as