The provision of procalcitonin assay results, along with instructions on their interpretation, to emergency department and hospital-based clinicians did not result in less use of antibiotics than did usual care among patients with suspected lower respiratory tract infection. (Funded by the National Institute of General Medical Sciences; ProACT ClinicalTrials.gov number, NCT02130986 .).

The data indicate that the HMB/Arg/Gln mixture can markedly alter the course of lean tissue loss in patients with AIDS-associated wasting.

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