junior, was encouraged, provided he could substantiate what he said. Rigid scientific standards had to be maintained and proper evidence provided. 'Opinion' was at once, fairly politely, denounced. A quiet humour added savour to overturgid discussion and Dr McMichael had a constant care for comprehensibility so that no point was missed. ('What exactly do you mean by "C.V.A."? Ah yes, I thought ...

Development of the coronary vascular system is an interesting model in developmental biology with major implications for the clinical setting. Although coronary vessel development is a form of vasculogenesis followed by angiogenesis, this system uses several unique developmental processes not observed in the formation of other blood vessels. This review summarizes the literature that describes ...

mehran plain is located in the cultural region of south west iran. studying the geographic location of this region in relation to the formation of early states is important. the cultural materials of chogha ahowan in mehran plain would explain the process of urbanization and cultural interactions of this region with its neighbors. according to the surveys conducted to collect necessary pottery ...

PURPOSE To describe the clinical evolution of cases with avulsed retinal vessels without retinal detachment treated with laser or scleral buckle. METHODS Retrospective analysis of cases with avulsed retinal vessels treated between 2001-2003. Laser photocoagulation or scleral buckle was used. The minimum follow-up was 6 months. Average age was 53.6 years. RESULTS Of 13 patients, 8 were photo...

Knowledge of the variations of the renal artery has grown in importance with increasing of renal transplants, vascular reconstructions and various surgical and radiologic techniques performing in recent years. We report the presence of unilateral doubled renal vessels, discovered on routine dissection of a male cadaver, on the right side; additional renal artery originated from the abdominal ao...

Essential thrombocythemia is a chronic myeloproliferative disorder characterized by a sustained proliferation of megakaryocytes, which leads to increased numbers of circulating platelets. Hemorrhagic and/or thrombotic episodes are frequent, and thrombosis of both veins and arteries may develop. Vessels in unusual sites may be involved, e.g., the hepatic veins, mesenteric veins, and the dig...

TO THE EDITOR: In an effort to maximize the utility of the thallium scan, the subject of the reinjection of thallium has become an issue of recent concern (1). The rationale of the reinjection procedure is the observation that a stress/reinjection comparison does a better job of identifying viable myocardium than a stress/redistribution scan. Some authors propose performing stress/redistributio...