Hardy, E., Kumar, S., Peaker, S., Feely, M., & Pullar, T. (1990). A comparison of a short half-life marker (low-dose isoniazid), a long half-life pharmacological indicator (low-dose phenobarbitone) and measurements of a controlled release 'therapeutic drug' (metoprolol, Metoros) in reflecting incomplete compliance by volunteers.

Hardy, E., S. Kumar, S. Peaker, M. Feely, και T. Pullar. A Comparison of a Short Half-life Marker (low-dose Isoniazid), a Long Half-life Pharmacological Indicator (low-dose Phenobarbitone) and Measurements of a Controlled Release 'therapeutic Drug' (metoprolol, Metoros) in Reflecting Incomplete Compliance By Volunteers. 1990.

Hardy, E., et al. A Comparison of a Short Half-life Marker (low-dose Isoniazid), a Long Half-life Pharmacological Indicator (low-dose Phenobarbitone) and Measurements of a Controlled Release 'therapeutic Drug' (metoprolol, Metoros) in Reflecting Incomplete Compliance By Volunteers. 1990.