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Logo of jroyalcgpracBJGP at RCGPBJGP at PubMed CentralJ R Coll Gen Pract at PubMed CentralRCGP homepage
 
J R Coll Gen Pract. Dec 1971; 21(113): 746–747.
PMCID: PMC2156412
Direction of spiral of the umbilical cord.
J. E. Malcolm and D. P. Pound
Articles from The Journal of the Royal College of General Practitioners are provided here courtesy of
Royal College of General Practitioners