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  1. NLM Digital Collections - The American illustrated medical dictionary : a new and complete dictionary of the terms used ... 
    Publication: Philadelphia ; London : W. B. Saunders Company, 1924
    resource.nlm.nih.gov/26420040R
    ... spine]. Absence of the head and spinal column. acephalostomia (ah-sef"al-o-sto'me-ah) [Gr. ... to-mus). A mon- ster-fetus characterized by acephalostomia. acephalothoracia (ah-sef"al-o-tho-ra'se- ...
  2. 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 ...