title: Challenges in measuring outcomes: size assessment of an individual cutaneous lesion.
authors.affiliation: Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
authors.forename: Lauren
authors.initials: L
authors.lastname: Okon
authors.affiliation: Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania; Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania. Electronic address: werth@mail.med.upenn.edu.
authors.forename: Victoria P
authors.initials: VP
authors.lastname: Werth
mesh_terms: D065130:Endothelin A Receptor Antagonists; D005260:Female; D006801:Humans; D008297:Male; D010666:Phenylpropionates / Q000627:therapeutic use*; D011724:Pyridazines / Q000627:therapeutic use*; D012595:Scleroderma, Systemic / Q000150:complications*; D012883:Skin Ulcer / Q000188:drug therapy* / Q000517:prevention & control*
chemical_list: D065130:Endothelin A Receptor Antagonists; D010666:Phenylpropionates; D011724:Pyridazines; C467894:ambrisentan