| Plasma clozapine, norclozapine, and the clozapine: norclozapine ratio in relation to prescribed dose and other factors: data from a therapeutic drug monitoring service, 1993–2007 L Couchman, PE Morgan, EP Spencer, RJ Flanagan Therapeutic drug monitoring 32 (4), 438-447, 2010 | 196 | 2010 |
| Rapid development of sensitive, high-throughput, quantitative and highly selective mass spectrometric targeted immunoassays for clinically important proteins in human plasma … B Krastins, A Prakash, DA Sarracino, D Nedelkov, EE Niederkofler, ... Clinical biochemistry 46 (6), 399-410, 2013 | 126 | 2013 |
| Measurement of the direct oral anticoagulants apixaban, dabigatran, edoxaban, and rivaroxaban in human plasma using turbulent flow liquid chromatography with high-resolution … T Gous, L Couchman, JP Patel, C Paradzai, R Arya, RJ Flanagan Therapeutic drug monitoring 36 (5), 597-605, 2014 | 113 | 2014 |
| A 13-steroid serum panel based on LC-MS/MS: use in detection of adrenocortical carcinoma DR Taylor, L Ghataore, L Couchman, RP Vincent, B Whitelaw, D Lewis, ... Clinical chemistry 63 (12), 1836-1846, 2017 | 109 | 2017 |
| Turbulent flow chromatography in bioanalysis: a review L Couchman Biomedical Chromatography 26 (8), 892-905, 2012 | 108 | 2012 |
| LC–MS/MS of some atypical antipsychotics in human plasma, serum, oral fluid and haemolysed whole blood DS Fisher, SJ Partridge, SA Handley, L Couchman, PE Morgan, ... Forensic science international 229 (1-3), 145-150, 2013 | 91 | 2013 |
| LC‐MS in analytical toxicology: some practical considerations L Couchman, PE Morgan Biomedical Chromatography 25 (1‐2), 100-123, 2011 | 85 | 2011 |
| An automated method for the measurement of a range of tyrosine kinase inhibitors in human plasma or serum using turbulent flow liquid chromatography–tandem mass spectrometry L Couchman, M Birch, R Ireland, A Corrigan, S Wickramasinghe, ... Analytical and bioanalytical chemistry 403 (6), 1685-1695, 2012 | 83 | 2012 |
| Variability in the analysis of 25-hydroxyvitamin D by liquid chromatography–tandem mass spectrometry: The devil is in the detail L Couchman, CM Benton, CF Moniz Clinica chimica acta 413 (15-16), 1239-1243, 2012 | 81 | 2012 |
| Commercial insulin immunoassays fail to detect commonly prescribed insulin analogues C Parfitt, D Church, A Armston, L Couchman, C Evans, G Wark, ... Clinical biochemistry 48 (18), 1354-1357, 2015 | 76 | 2015 |
| Plasma olanzapine in relation to prescribed dose and other factors: data from a therapeutic drug monitoring service, 1999-2009 MX Patel, S Bowskill, L Couchman, V Lay, D Taylor, EP Spencer, ... Journal of clinical psychopharmacology 31 (4), 411-417, 2011 | 66 | 2011 |
| An automated, high‐throughput method for targeted quantification of intact insulin and its therapeutic analogs in human serum or plasma coupling mass spectrometric immunoassay … S Peterman, EE Niederkofler, DA Phillips, B Krastins, UA Kiernan, ... Proteomics 14 (12), 1445-1456, 2014 | 64 | 2014 |
| Sex differences in plasma clozapine and norclozapine concentrations in clinical practice and in relation to body mass index and plasma glucose concentrations: a retrospective … SG Anderson, M Livingston, L Couchman, DJ Smith, M Connolly, J Miller, ... Annals of general psychiatry 14 (1), 39, 2015 | 55 | 2015 |
| Plasma clozapine and norclozapine in relation to prescribed dose and other factors in patients aged< 18 years: data from a therapeutic drug monitoring service, 1994–2010 L Couchman, SVJ Bowskill, S Handley, MX Patel, RJ Flanagan Early intervention in psychiatry 7 (2), 122-130, 2013 | 55 | 2013 |
| An automated method for the simultaneous measurement of azole antifungal drugs in human plasma or serum using turbulent flow liquid chromatography-tandem mass spectrometry L Couchman, SL Buckner, PE Morgan, MM Ceesay, A Pagliuca, ... Analytical and bioanalytical chemistry 404 (2), 513-523, 2012 | 46 | 2012 |
| Challenges and benefits of endogenous steroid analysis by LC–MS/MS L Couchman, RP Vincent, L Ghataore, CF Moniz, NF Taylor Bioanalysis 3 (22), 2549-2572, 2011 | 44 | 2011 |
| Plasma clozapine and norclozapine in relation to prescribed dose and other factors in patients aged 65 years and over: data from a therapeutic drug monitoring service, 1996–2010 S Bowskill, L Couchman, JH MacCabe, RJ Flanagan Human Psychopharmacology: Clinical and Experimental 27 (3), 277-283, 2012 | 40 | 2012 |
| Analytical considerations for the biochemical assessment of vitamin D status L Couchman, CF Moniz Therapeutic advances in musculoskeletal disease 9 (4), 97-104, 2017 | 37 | 2017 |
| LC-MS candidate reference methods for the harmonisation of parathyroid hormone (PTH) measurement: a review of recent developments and future considerations L Couchman, DR Taylor, B Krastins, MF Lopez, CF Moniz Clinical Chemistry and Laboratory Medicine (CCLM) 52 (9), 1251-1263, 2014 | 32 | 2014 |
| Plasma clozapine and norclozapine in patients prescribed different brands of clozapine (Clozaril, Denzapine, and Zaponex) L Couchman, PE Morgan, EP Spencer, A Johnston, RJ Flanagan Therapeutic drug monitoring 32 (5), 624-627, 2010 | 25 | 2010 |
