1,721,050 research outputs found
Communicating oesophageal duplication: a case report
No full textDuplications of the oesophagus are rare congenital abnormalities and rarely communicate with the oesophageal lumen. They are commonly associated with other congenital malformations, such as spinal deformities, congenital heart disease, vertebral anomalies, malrotation of the bowel, Meckel's diverticulum. During a percutaneous endoscopic gastrostomy, performed because of a neurological dysphagia, the endoscopy revealed a very rare case of a 26-year old man affected by Klippel-Trenaunay syndrome, with an asymptomatic oesophageal duplication that communicated proximally and distally
Solitary presacral hydatid cyst|CISTI DA ECHINOCOCCO PRESACRALE ISOLATA
No full textA rare case of a solitary hydatid cyst located in the pelvis, which was responsible for neural pain due to the compression of the left ischiatic nerve is described. Diagnostic and pathogenic problems related to the localization of hydatic cysts without liver and lung involvement are discussed
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
- …
