Michael G, Musgrave M, Bard V, Thwaites S, Beney J, Sumners S, Krasner D, Wyndham M.
Br Med J (Clin Res Ed). 1988 Feb 27;296(6622):640. doi: 10.1136/bmj.296.6622.640.
PMID: 3126933 Free PMC Article
Free PMC Article
Cournoyer RJ.
N Engl J Med. 1970 Jan 08;282(2):106. doi: 10.1056/NEJM197001082820229.
PMID: 5409497