Skip to languages: fr en es de it pt orphanet index there is no disease so rare that it does not deserve attention homepage about orphanet help contact us main menu : rare diseases orphan drugs expert centres diagnostic tests research and trials patient organisations professionals and institutions other information submenu : search search by sign classifications genes encyclopaedia for patients encyclopaedia for professionals emergency guidelines navigation tree : homepage rare diseases search print simple search simple search enter keywords * (*) mandatory field disease name gene name or symbol omim icd-10 orpha number  simple search other search option(s) alphabetical list niemann-pick disease type b orpha number orpha77293 synonym(s) - prevalence 1-9 / 1 000 000 inheritance autosomal recessive age of onset childhood icd-10 e75. viagra how long before it starts to work 2 omim 607616 umls c0268243 mesh d052537 meddra - snomed ct 39390005 summary niemann-pick disease type b is a mild subtype of niemann-pick disease (see this term), an autosomal recessive lysosomal disease, and is characterized clinically by onset in childhood with hepatosplenomegaly, growth retardation, and lung disorders such as infections and dyspnea last update: february 2012 suggest an update (*) required fields. effects viagra young women buy generic viagra online You are (*) choose: health professional patient/family/association biopharmaceutical industry scientist student other if you have selected the “other” category, please specify which type of user you are: * email address: * topic of your comment: * epidemiology data summary and related texts related genes clinical signs nomenclature and/or coding attention: only comments seeking to improve the quality and accuracy of information on the orphanet website are accepted. buy viagra canada how much is a private prescription for viagra For all other comments, please send your remarks via contact us. buy viagra cheap viagra 50 mg Only comments written in english can be processed. buy viagra without prescription viagra cost Your message * (3000 characters remaining) check this box if you wish to receive a copy of your message please reproduce the text below additional information further information on this disease classification(s) (5) gene(s) (1) publications in pubmed other website(s) (8) health care resources for this disease expert centres (158) diagnostic tests (51) patient organisations (41) orphan drug(s) (1) research activities on this disease research projects (14) clinical trials (0) registries/biobanks (10) networks. viagra and viagra online how much is a private prescription for viagra