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In humans, multi-fetal pregnancy occurs when a mother carries more than one fetus during the pregnancy. The most common multi-fetal pregnancy is…
ReproductionFetusHuman DevelopmentConjoined twins are twins whose bodies are anatomically joined in utero. The degree to which the twins are attached can range from simple, involving…
Twins, ConjoinedReproductionFetusThe spinal column is the central structure in the vertebrate body from which stability, movement, and posture all derive. The vertebrae of the spine…
Congenital, Hereditary, and Neonatal Diseases and AbnormalitiesReproductionVertebratesCongenital Disorders