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Thus, the drug decreases endometriotic lesion size and consequently disease progression.BACKGROUND AND OBJECTIVES The Internet is a commonly used source of health-related information. Social media allow psoriasis patients to seek and share information about their disease. However, they also involve risks such as misinformation and envy. The aim of this study was to explore the relevance and suitability of Facebook as a source of disease-related information for patients with psoriasis. PATIENTS AND METHODS Cross-sectional study consisting of an online survey (11/2017-01/2018). The link was published on a German information website focused on psoriasis. We also collected data about the respondents’ general and disease-related Facebook habits as well as their assessment of opportunities and risks of Facebook in the context of psoriasis. RESULTS 101 participants with psoriasis completed the questionnaire. Of these, 75 % reported using Facebook at least once a month, and 72 % of Facebook users stated that they had searched for disease-related information on Facebook. Active members of psoriasis-related Facebook groups deemed Facebook more helpful for coping with psoriasis. 60 % of Facebook users reported unreliable information and 57 % reported sales promotions regarding psoriasis when using Facebook. CONCLUSIONS We found that Facebook is a relevant source of information for psoriasis patients. However, the quality of information offered seems insufficient and needs to be improved. © 2020 The Authors. Journal der Deutschen Dermatologischen Gesellschaft published by John Wiley & Sons Ltd on behalf of Deutsche Dermatologische Gesellschaft.Equation-of-motion coupled-cluster singles and doubles (EOM-CCSD) calculations have been performed to determine coupling constants 1 J(X-Y) for 65 molecules Hm X-YHn , with X,Y ═ 1 H, 7 Li, 9 Be, 11 B, 13 C, 15 N, 17 O, 19 F, 31 P, 33 S, and 35 Cl. The computed 1 J(X-Y) values are in good agreement with available experimental data. GI254023X cell line The reduced coupling constants 1 K(X-Y) have been derived from 1 J(X-Y) by removing the dependence on the magnetogyric ratios of X and Y. Patterns are found for the reduced coupling constants on a 1 K(X-Y) surface that are related to the positions of X and Y in the periodic table. © 2020 John Wiley & Sons, Ltd.Actinic keratoses (AKs) are common lesions in light-skinned individuals that can potentially progress to cutaneous squamous cell carcinoma (cSCC). Both conditions may be associated with significant morbidity and constitute a major disease burden, especially among the elderly. To establish an evidence-based framework for clinical decision making, the guidelines for actinic keratosis and cutaneous squamous cell carcinoma were developed using the highest level of methodology (S3) according to regulations issued by the Association of Scientific Medical Societies in Germany (AWMF). The guidelines are aimed at dermatologists, general practitioners, ENT specialists, surgeons, oncologists, radiologists and radiation oncologists in hospitals and office-based settings as well as other medical specialties involved in the diagnosis and treatment of patients with AKs and cSCC. The guidelines are also aimed at affected patients, their relatives, policy makers and insurance funds. In the second part, we will address aspects relating to epidemiology, etiology, surgical and systemic treatment of cSCC, follow-up and disease prevention, and discuss AKs and cSCC in the context of occupational disease regulations. © 2020 The Authors. Journal der Deutschen Dermatologischen Gesellschaft published by John Wiley & Sons Ltd on behalf of Deutsche Dermatologische Gesellschaft.BACKGROUND AND AIM The serial serologic changes of hepatitis D virus (HDV) infection among chronic hepatitis B virus (HBV) infected patients who received oral nucleotide/nucleoside analogues are elusive. METHODS Serum anti-HDV and HDV RNA among chronic hepatitis B (CHB) patients were tested at the time of initiating anti-HBV therapy and subsequently during the follow-up period. RESULTS The seropositive rate of anti-HDV and HDV RNA among 2850 CHB patients, was 2.7% and 0.9%, respectively. Factors associated with anti-HDV seropositivity were platelet counts (odds ratio [OR]/95% confidence intervals [CI] 0.995/0.992-0.999; P = 0.006), HBV DNA levels (OR/CI 0.81/0.70-0.94; P = 0.005), and hepatitis B e-antigen (HBeAg) seropositivity (OR/CI 0.22/0.05-0.95; P = 0.04). The only factor associated with HDV RNA positivity among anti-HDV seropositive patients was age (OR/CI 0.95/0.90-1.00; P = 0.03). The spontaneous clearance rate of serum anti-HDV antibody was 3.0 per 100 person-years with a median follow-up period of 3.5 years (range 2-12 years), whereas the seroclearance rate of HDV RNA was 4.3 per 100 person-years among anti-HDV seropositive patients after a median follow-up period of 6.0 years (range 2-11 years). A baseline anti-HDV titer  less then  0.5 cut-off index was the only factor predictive of anti-HDV seroclearance (hazard ratio [HR]/CI 30.11/3.73-242.85; P = 0.001). CONCLUSIONS HDV infection was not common among patients treated for HBV in Taiwan. Seroclearance of anti-HDV and HDV RNA did occur over time, albeit the chance is rare. © 2020 Journal of Gastroenterology and Hepatology Foundation and John Wiley & Sons Australia, Ltd.Heavy metal carboxylate or soap formation is a widespread deterioration problem affecting oil paintings and other works of art bearing oil-based media. Lead soaps are prevalent in traditional oil paintings because lead white was the white pigment most frequently chosen by old masters for the paints, and in some cases for the ground preparations, until the development of other white pigments from approximately the middle of the 18th century on, and due to the wide use of lead-tin yellow. In the latter part of the 19th century, lead white began to be replaced by zinc white. The factors that influence soap formation have been the focus of intense study starting in the late 1990s. Since 2014, NMR studies have contributed a unique perspective on the issue by providing chemical, structural, and dynamic information about the species involved in the process, as well as the effects of environmental conditions such as relative humidity and temperature on the kinetics of the reaction(s). In this review, we explore recent insights into soap formation gained through solid-state NMR and single-sided NMR techniques.