Prevention of pregnancy by the Graefenberg ring method; a re-evaluation after 28 years' experience (Q78722621)
scientific article published on 01 August 1959
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(P31) (Q13442814)
(P304) 446-454
(P407) (Q1860)
(P433) 2
(P478) 78
(P577) Saturday, August 1, 1959
(P1433) (Q4744256)
(P1476) "Prevention of pregnancy by the Graefenberg ring method; a re-evaluation after 28 years' experience" (language: en)
(P2093) W OPPENHEIMER
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description scientific article published on 01 August 1959

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