References
- Barr W. A., Collee J. G. Differences in the biological and immunological activities of human chorionic gonadotrophin after the removal of sialic acid by enzymic hydrolysis. J. Endocr. 1967; 38: 395
- Bohn H. Isolierung und Charakterisierung des schwangerschafts-spezifischen β1-Glycoproteins. Blut 1972; 24: 292
- Bohn H. Untersuchungen über des schwanger-schafts-spezifische β1-Glycoprotein (SP1). Arch. Gynäk. 1974; 216: 347
- Brogren C.-H., Bøg-Hansen T. C., Svendsen P. J., Bjerrum O. J. Antisera against purified asialo-orosomucoid and asialo-cholinesterase. Scand. J. Immunol. 1975; 4: 59, Suppl. 2
- Burnett D., Wood S. M., Studd J. W.W., Lewis B. V., Bradwell A. R. A study of the relationship between maternal serum and amniotic fluid proteins in early and late pregnancy. Prot. biol. Fluids 1976; 24: 161
- Butt W. R., Lynch S. S. Radioimmunoassay of gonadotrophins with special reference to follicle-stimulating hormone. Clin. chim. Acta 1968; 22: 79
- Ekins R. P. Specificity of radioimmunoassay. Protein and Polypeptide Hormones, M. Margoulies. Excepta Medica Foundation., Amsterdam 1969; 575
- Gordon Y. B., Grudzinskas J. G., Jeffrey D., Chard T., Letchworth A. T. Concentrations of pregnancy-specific β1-glycoprotein in maternal blood in normal pregnancy and in intrauterine growth retardation. Lancet 1977; 1: 331
- Greenwood F. C., Hunter W. H., Glower J. S. The preparation of 131I-labelled human growth hormone of high specific radioactivity. Biochem. J. 1963; 89: 114
- Grudzinskas J. G., Gordon Y. B., Jeffrey D., Chard T. Specific and sensitive determination of pregnancy-specific β1-glycoprotein by radioimmunoassay. A new pregnancy test. Lancet 1977; 1: 333
- Horne C. H.W., Reid I. N., Milne G. D. Prognostic significance of inappropriate production of pregnancy proteins by breast cancers. Lancet 1976; 1: 279
- Horne C. H.W., Reid I. N., Towler CM., Milne G. D. Production of pregnancy specific β1-glycoprotein by nontrophoblastic tumours. Prot. biol. Fluids 1976; 24: 567
- Hunter W. M. The preparation and assessment of iodinated antigens. Radioimmunoassay Methods, W. H. Hunter, K. E. Kirkham. Livingstone, Edinburgh 1971; 3
- Lin T. M., Halbert S. P., Kiefer D., Spellacy W. N. Three pregnancy-associated human plasma proteins: purification, monospecific antisera and immunological identification. Int. Arch. Allergy 1974; 47: 35
- Schuurs A. M. H.W., Jager E., de Homan J. D.H. Studies on human chorionic gonadotrophin. III. Immunochemical characterization. Acta endocr. 1968; 59: 120
- Stevens V. C., Bohn H., Powell J. E. Serum levels of a placental protein during gestation in the baboon. Amer. J. Obstet. Gynec. 1976; 124: 51
- Sørensen S. An electroimmunoassay of the pregnancy-specific β1-glycoprotein (SP1) in normal and pathological pregnancies, and its clinical value compared to human chorionic somatomammotropin (HCS). Acta obstet. gynec. scand., In press.
- Tatarinov Yu. S., Sokolov A. V. Development of a radioimmunoassay for pregnancy-specific beta1-globulin and its measurement in serum of patients with trophoblastic and non-trophoblastic tumours. Int. J. Cancer 1977; 19: 161
- Tatra G., Breitenecker G., Gruber W. Serum concentration of pregnancy-specific β-1 glycoprotein (SP-1) in normal and pathologic pregnancies. Arch. Gynäk. 1974; 217: 383
- Towler C. M., Horne C. H.W., Jandial V., Campbell D. M., MacGillivray I. Plasma levels of pregnancy-specific β1 -glycoprotein in normal pregnancy. Brit. J. Obstet. Gynaecol. 1976; 83: 775
- Towler C. M., Jandial V., Home C. H.W., Bohn H. A serial study of pregnancy proteins in primigravidae. Brit. J. Obstet. Gynaecol. 1976; 83: 368
- Weeke B. Crossed immunoelectrophoresis. Scand. J. Immunol. 1973; 2: 47, Suppl. 1
- Wide L. Radioimmunoassays employing immunosorbents. Acta endocr. 1969; 142: 207, Suppl.
- Yalow Rosalyn S., Berson S. A. Labeling of proteins—problems and practices. Trans. N. Y. Acad. Sci. 1966; 28: 1033