hepatocellular carcinoma (hcc) represents one of the most common neoplasms worldwide.  liver trasnplantation (lt) is the treatment of choice for selected group of patients with hcc. lt is actually a consolidated therapeutic option for hcc because it cures both tumor and underlying cirrhosis. in 1996, the publication of a pivotal prospective study on less than 50 patients, transplanted for hcc u...

use of nano-materials has increased in various aspects of human life. however, possible outbreak of nano-materials toxicity in humans and other organisms is one of the future challenges. different chemical precursors which are used in chemical approaches for production of nano-materials may have secondary and sometimes toxic effects in living organisms. these secondary effects may be reduced in...

conclusions parents were blood relatives in 33 (33%) of the patient cases, which is a very high rate. therefore, non-random mating is an important issue in developing countries that needs more attention results 100 patients with down syndrome and congenital heart disease were evaluated; 52 were female (52%) and 48 were male (48%). the average birth weight of the subjects was 2745 ± 523 (mean ± ...

down syndrome is the most common known chromosomal disorder in man.this syndrome has many sings and symptoms which are variable in frequency.taking all the signs and symproms in to consideration,diagnosis of down syndrome is not a difficult task-however in the past it was difficult to diagnose this syndrome based on a single clinical sign,until  hypertrophy of hyponichium was first introduced b...