| Non-invasive diagnosis of endometriosis based on a combined analysis of six plasma biomarkers A Mihalyi, O Gevaert, CM Kyama, P Simsa, N Pochet, F De Smet, ... Human reproduction 25 (3), 654-664, 2010 | 223 | 2010 |
| The role of inhibins B and antimüllerian hormone for diagnosis and follow-up of granulosa cell tumors I Geerts, I Vergote, P Neven, J Billen International Journal of Gynecologic Cancer 19 (5), 2009 | 126 | 2009 |
| Progesterone increases airway eosinophilia and hyper‐responsiveness in a murine model of allergic asthma PW Hellings, P Vandekerckhove, R Claeys, J Billen, A Kasran, ... Clinical & Experimental Allergy 33 (10), 1457-1463, 2003 | 113 | 2003 |
| Development of a Method for the Quantification of 1α,25(OH)2–Vitamin D3 in Serum by Liquid Chromatography Tandem Mass Spectrometry without Derivatization B Casetta, I Jans, J Billen, D Vanderschueren, R Bouillon European Journal of Mass Spectrometry 16 (1), 81-89, 2010 | 108 | 2010 |
| Regulation of insulin-like growth factor-I and insulin-like growth factor binding protein-1 concentrations in preterm fetuses J Verhaeghe, E Van Herck, J Billen, P Moerman, FA Van Assche, ... American journal of obstetrics and gynecology 188 (2), 485-491, 2003 | 84 | 2003 |
| Serum transferrin receptor in the evaluation of the iron status in elderly hospitalized patients with anemia E Joosten, R Van Loon, J Billen, N Blanckaert, R Fabri, W Pelemans American journal of hematology 69 (1), 1-6, 2002 | 79 | 2002 |
| Active vitamin D (1, 25-dihydroxyvitamin D) and bone health in middle-aged and elderly men: the European Male Aging Study (EMAS) D Vanderschueren, SR Pye, TW O'Neill, DM Lee, I Jans, J Billen, E Gielen, ... The Journal of Clinical Endocrinology & Metabolism 98 (3), 995-1005, 2013 | 77 | 2013 |
| Calcium and bone homeostasis in heterozygous carriers of CYP24A1 mutations: a cross-sectional study M Cools, S Goemaere, D Baetens, A Raes, A Desloovere, JM Kaufman, ... Bone 81, 89-96, 2015 | 68 | 2015 |
| Sensitive routine liquid chromatography–tandem mass spectrometry method for serum estradiol and estrone without derivatization S Pauwels, L Antonio, I Jans, A Lintermans, P Neven, F Claessens, ... Analytical and bioanalytical chemistry 405, 8569-8577, 2013 | 61 | 2013 |
| Adrenocortical function during prolonged critical illness and beyond: a prospective observational study B Peeters, P Meersseman, S Vander Perre, PJ Wouters, D Vanmarcke, ... Intensive care medicine 44, 1720-1729, 2018 | 58 | 2018 |
| Determination of human reference values for serum total 1, 25-dihydroxyvitamin D using an extensively validated 2D ID-UPLC–MS/MS method NF Dirks, F Martens, D Vanderschueren, J Billen, S Pauwels, ... The Journal of steroid biochemistry and molecular biology 164, 127-133, 2016 | 50 | 2016 |
| Small‐dose oral iron absorption test in anaemic and non‐anaemic elderly hospitalized patients E Joosten, B Van der Elst, J Billen European journal of haematology 58 (2), 99-103, 1997 | 37 | 1997 |
| Additional Value of CH4 Measurement in a Combined 13C/H2 Lactose Malabsorption Breath Test: A Retrospective Analysis E Houben, V De Preter, J Billen, M Van Ranst, K Verbeke Nutrients 7 (9), 7469-7485, 2015 | 36 | 2015 |
| Lanreotide reduces liver volume, but might not improve muscle wasting or weight loss, in patients with symptomatic polycystic liver disease F Temmerman, TA Ho, R Vanslembrouck, W Coudyzer, J Billen, ... Clinical Gastroenterology and Hepatology 13 (13), 2353-2359. e1, 2015 | 34 | 2015 |
| Skin metabolites define a new paradigm in the localization of skin tropic memory T cells ML McCully, PJ Collins, TR Hughes, CP Thomas, J Billen, VB O’Donnell, ... The Journal of Immunology 195 (1), 96-104, 2015 | 28 | 2015 |
| Insulin-like growth factor-binding protein-1 in umbilical artery and vein of term fetuses with signs suggestive of distress during labor J Verhaeghe, J Billen, LC Giudice Journal of endocrinology 170 (3), 585-590, 2001 | 27 | 2001 |
| Serum tissue polypeptide antigen (TPA) as tumor marker for bladder cancer. H Van Poppel, J Billen, H Goethuys, AA Elgamal, M Gerits, L Mortelmans, ... Anticancer research 16 (4B), 2205-2207, 1996 | 24 | 1996 |
| Free testosterone reflects metabolic as well as ovarian disturbances in subfertile oligomenorrheic women L Antonio, S Pauwels, MR Laurent, D Vanschoubroeck, I Jans, J Billen, ... International Journal of Endocrinology 2018, 2018 | 21 | 2018 |
| 1β, 25-Dihydroxyvitamin D3: a new vitamin D metabolite in human serum S Pauwels, I Jans, J Billen, A Heijboer, A Verstuyf, G Carmeliet, C Mathieu, ... The Journal of steroid biochemistry and molecular biology 173, 341-348, 2017 | 21 | 2017 |
| Prevalent breast cancer patients with a homozygous mutant status for CYP2D6* 4: response and biomarkers in tamoxifen users AS Dieudonné, D Lambrechts, B Claes, T Vandorpe, H Wildiers, ... Breast cancer research and treatment 118, 531-538, 2009 | 18 | 2009 |
Frank ClaessensKU LeuvenVerified email at med.kuleuven.be
