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Description: Early intra-uterine stem pessary, consisting of catgut loop and plastic button, a stage in the evolution of the Grafenberg Ring License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: intra-uterine devices Source: Science Museum Identifier: A606485 Go to resource More Like this...-
Bi-metallic intra-uterine stem pessary, Simpson's…Bi-metallic intra-uterine stem pessary, Simpson's…
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