_:vb50941243 . _:vb50941243 "A hypotrichosis that is characterized by sparse to absent lanugo-like scalp hair, sparse and brittle eyebrows, and sparse eyelashes and body hair and that has_material_basis_in homozygous or compound heterozygous mutation in the LSS gene on chromosome 21q22."^^ . _:vb50941243 "url:https://www.ncbi.nlm.nih.gov/pubmed/30401459"^^ . _:vb50941243 . _:vb50941243 . _:vb50941243 . _:vb50941243 .