1
6
8
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9
by Förster, F
Published in Archiv für Naturgeschichte. (1914)
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10
12
13
by Cameron, D., Forster, F.
Published in BMJ (1983)
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14
15
by Forster, F. J. P.
Published in BMJ (1965)
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17
by FORSTER, F. M.
Published in AJP (1944)
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18