Carl Weigert
Carl Weigert (1845-1904) was a German pathologist. Eponymously affiliated Weigert's Law in 1896 and along with Robert Meyer (1864-1947) the Weigert-Meyer rule (1877)
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Robert Meyer
Robert Meyer (1864 - 1947) was a gynaecologist and pathologist. Eponymously affiliated with the Weigert-Meyer rule he described in 1907. Meyer was recognised world wide as one of the founders of gynaecological pathology and for his contributions to embryology.
Weigert-Meyer rule
Weigert (1877) and later Meyer (1907) recognized that the disposition of the ectopic orifice to lie caudal and medial to the orthoptic orifice was almost universal in cases of ureteral duplication. Weigert-Meyer Law.