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  1. NLM Digital Collections - The student's medical dictionary : including all the words and phrases generally used in ... 
    Publication: Philadelphia : P. Blakiston, 1896
    resource.nlm.nih.gov/62710570R
    ... spine]. Absence of the head and vertebral column. Acephalostomia (ah-sef-al-o-sto'-nie-ah) [a ...