{"paper_id":"29de460d-b834-4606-83ef-c2e27f9fc25c","body_text":"Full text\nPDFFootnotes\nRead by invitation at a meeting of the Edinburgh Obstetrical Society on 9th February 1938.\nAs a library, NLM provides access to scientific literature. Inclusion in an NLM database does not imply endorsement of, or agreement with,\nthe contents by NLM or the National Institutes of Health.\nLearn more: PMC Disclaimer | PMC Copyright Notice\nLearn more: PMC Disclaimer | PMC Copyright Notice\n. 1938;58:61–80.\n*\nRead by invitation at a meeting of the Edinburgh Obstetrical Society on 9th February 1938.\n- PDF (11.2 MB)\n-\nPERMALINK","source_license":"CC0","license_restricted":false}