| Literature DB >> 2751975 |
A M Quick1, P T Khaw, A R Elkington.
Abstract
Two clinical trials to assess the efficacy of two topical beta-blocker preparations involved the recruitment of 60 and 40 patients respectively. The greatest obstacle encountered in carrying out the trials was recruiting patients. This difficulty is reported in detail and comparisons are made with the experience of others who have met similar problems.Entities:
Mesh:
Year: 1989 PMID: 2751975 PMCID: PMC1041763 DOI: 10.1136/bjo.73.6.432
Source DB: PubMed Journal: Br J Ophthalmol ISSN: 0007-1161 Impact factor: 4.638