You can download PubmedSearch 1.1 for Mac from our application library for free. The program is included in Education Tools. This free software for Mac OS X is an intellectual property of deathraypizza.
From the developer:
PubSearch is a fast, efficient search tool for scientists, medical professionals and students who rely on the ability to quickly access the millions of research papers indexed in PubMed.
You may want to check out more Mac applications, such as Integrated Data Viewer Installer, UN-SCAN-IT Demo or Enzyme X, which might be related to PubmedSearch.