Stefan Hagmann

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Moorlaas (1928) proposed that apraxic patients can identify objects and can remember the purpose they have been made for but do not know the way in which they must be used to achieve that purpose. Knowledge about the use of objects and tools can have two sources: It can be based on retrieval of instructions of use from semantic memory or on a direct(More)
In two patients with damage to the inferior portion of the left angular gyrus severely defective imitation of meaningless gestures contrasted with preserved performance of meaningful gestures to verbal command and with preserved imitation of meaningful gestures. In one patient the imitation deficit was restricted to the imitation of hand positions while(More)
OBJECTIVE By using a large, multicenter database, we investigated the characteristics and morbidities of 1591 children returning from 218 global destinations and presenting for care in 19 countries. METHODS Data reported to the GeoSentinel Surveillance Network between January 1997 and November 2007 were analyzed, to assess demographic features, travel(More)
BACKGROUND  International travel poses a risk of destination-specific illness and may contribute to the global spread of infectious diseases. Despite this, little is known about the health characteristics and pretravel healthcare of US international travelers, particularly those at higher risk of travel-associated illness. METHODS  We formed a national(More)
BACKGROUND US residents make 60 million international trips annually. Family practice providers need to be aware of travel-associated diseases affecting this growing mobile population. OBJECTIVE To describe demographics, travel characteristics and clinical diagnoses of US residents who present ill after international travel. METHODS Descriptive analysis(More)
To understand geographic variation in travel-related illness acquired in distinct African regions, we used the GeoSentinel Surveillance Network database to analyze records for 16,893 ill travelers returning from Africa over a 14-year period. Travelers to northern Africa most commonly reported gastrointestinal illnesses and dog bites. Febrile illnesses were(More)
Disclosure of HIV status to children is a challenge parents living with HIV face. To evaluate predictors of maternal HIV disclosure in a low-income clinic in the U.S. that serves an African American, Hispanic and immigrant population with high HIV prevalence, 172 caregivers with 608 children completed a standardized survey. Caregivers were 93 % female, 84 %(More)
BACKGROUND There is a lack of studies evaluating pre-travel health care for children who travel to visit friends and relatives (VFR). We evaluated travel health services provided to children VFR travelers (CVFRs) as compared with adult VFR travelers (AVFRs). CVFRs and AVFRs were also compared with children and with adults traveling as tourists (CTs and ATs,(More)
BACKGROUND The largest-ever outbreak of Ebola virus disease (EVD), ongoing in West Africa since late 2013, has led to export of cases to Europe and North America. Clinicians encountering ill travelers arriving from countries with widespread Ebola virus transmission must be aware of alternate diagnoses associated with fever and other nonspecific symptoms. (More)