title: Letter: Striae gravidarum.
mesh_terms: D000005:Abdomen; D003094:Collagen / Q000032:analysis; D003238:Connective Tissue / Q000032:analysis / Q000187:drug effects*; D004967:Estrogens / Q000494:pharmacology; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications; D012867:Skin / Q000033:anatomy & histology; D012871:Skin Diseases / Q000209:etiology*
chemical_list: D004967:Estrogens; D003094:Collagen