Research has shown that incorporating eye tracking in usability research can provide certain benefits compared with traditional usability testing. There are various methodologies available when conducting research using eye trackers. This paper presents the results of a study aimed to compare the outcomes from four different retrospective think aloud (RTA) methods in a webusability study: an un...

objective(s): the aim of this study is to evaluate the role of pet-ct in identification of different patterns of extranodal involvement in hodgkin’s disease (hd) and non-hodgkin’s lymphoma (nhl) and to enlist the common sites of extranodal involvement in each histological type and compare our results with the existing literature. methods: in this retrospective study of 281 cases of lymphomas of...

background: the infertility is an important health problem, affecting about 15% of couples. the important role of genetic factors in pathogenesis of infertility is now increasingly recognized. the value of karyotyping women in the routine work-out of couples referred for sterility has long been recommended. objective: the aim of this study was to define the frequency of all chromosomal aberrati...

BACKGROUND We sought to clarify the association between the personal utilization of general health checkups (GHCs) and medical expenditures (MEs) in a middle-aged Japanese population. METHODS A retrospective cohort study was conducted. Subjects were 33,417 residents (15,819 males and 17,598 females) aged 48 years or older in 2010 who were invited to undergo GHCs every year. Official records o...