An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Prasad N, Lang CC, McAlpine HM, Choy AM, MacDonald TM, Struthers AD.Prasad N, et al. Among authors: mcalpine hm.Respir Med. 1995 Jul;89(6):445-7. doi: 10.1016/0954-6111(95)90215-5.Respir Med. 1995.PMID: 7644777Free article.No abstract available.
Johnston DA, Phillips G, Perry M, McAlpine H, Richards J, Pennington CR.Johnston DA, et al.Clin Nutr. 1993 Dec;12(6):365-8. doi: 10.1016/0261-5614(93)90034-2.Clin Nutr. 1993.PMID: 16843340