Cervén , Eric, Gunnar Ronquist, Åke Rimsten, and Gunnar Ågren. 1981. “The Use of Con A Sepharose As an Affinity Adsorbent in a Simple Assay of Serum Sialyl and Fucosyltransferase and Its Application in Tumour Diagnosis”. Upsala Journal of Medical Sciences 86 (3):237-47. https://doi.org/10.3109/03009738109179235.