Problem: A 28-year-old man presents to the clinic complaining of a new onset rash that started one week after initiating antiepileptic therapy. He complains of associated fever and joint pain that started with the appearance of his rash. Multiple skin lesions are present on the posterior elbows bilaterally and demonstrate three concentric rings with a dusky, central area surrounded by a pale ring of edema and an erythematous halo. The central maculopapular lesions vary in size from 1 to 3.5 cm in diameter. The patient also has mild mucosal involvement. Which of the following clinical findings indicates a diagnosis of erythema multiforme major versus erythema multiforme minor? Increased number of lesions Mucosal involvement Presence of fever Target lesions greater than 3 cm in diameter