“…So much has been written about dextrocardia, in contrast with the relative paucity of papers on isolated levocardia, that we cannot review the subject fully, but would refer to the papers of Schmidt (1953, 1954) and Schmidt and Korth (1954). They found that among more than 1000 cases of mirror-image inversion of the heart only 12 were without inversion of the abdominal viscera.…”