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The indirect approach was found to be cheaper.<\/jats:p>","DOI":"10.1136\/jcp.22.3.317","type":"journal-article","created":{"date-parts":[[2007,6,9]],"date-time":"2007-06-09T00:50:46Z","timestamp":1181350246000},"page":"317-320","source":"Crossref","is-referenced-by-count":3,"title":["Economic and laboratory considerations in screening for vitamin B<sub>12<\/sub> deficiency in psychiatric practice"],"prefix":"10.1136","volume":"22","author":[{"given":"J. Swanson","family":"Beck","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Audrey A.","family":"Dawson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. G.","family":"Henderson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R. 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