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.
Quarrell OW, Tyler A, Jones MP, Nordin M, Harper PS.Quarrell OW, et al. Among authors: harper ps.Clin Genet. 1988 Mar;33(3):189-95. doi: 10.1111/j.1399-0004.1988.tb03436.x.Clin Genet. 1988.PMID: 2966022
Harper PS, Tyler A, Smith S, Jones P, Newcombe RG, McBroom V.Harper PS, et al.J Med Genet. 1982 Aug;19(4):241-5. doi: 10.1136/jmg.19.4.241.J Med Genet. 1982.PMID: 6214632Free PMC article.
Walker DA, Harper PS, Newcombe RG, Davies K.Walker DA, et al. Among authors: harper ps.J Med Genet. 1983 Feb;20(1):12-7. doi: 10.1136/jmg.20.1.12.J Med Genet. 1983.PMID: 6221100Free PMC article.
Tyler A, Harper PS.Tyler A, et al. Among authors: harper ps.J Med Genet. 1983 Jun;20(3):179-88. doi: 10.1136/jmg.20.3.179.J Med Genet. 1983.PMID: 6224012Free PMC article.
Harper PS, Walker DA, Tyler A, Newcombe RG, Davies K.Harper PS, et al.Lancet. 1979 Aug 18;2(8138):346-9. doi: 10.1016/s0140-6736(79)90356-8.Lancet. 1979.PMID: 89402
Tyler A, Quarrell OW, Lazarou LP, Meredith AL, Harper PS.Tyler A, et al. Among authors: harper ps.J Med Genet. 1990 Aug;27(8):488-95. doi: 10.1136/jmg.27.8.488.J Med Genet. 1990.PMID: 2145437Free PMC article.