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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.
Approximately 25% of all reported medication errors result from some kind of name confusion.
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.