Frank Chambliss Johnson (1894 – 1934) was an American pediatrician. Along with Albert Mason Stevens (1884 – 1945), is eponymously affiliated with Stevens-Johnson syndrome
= immune complex mediated hypersensitivity -> severe erythema multiforme. Separation of the epidermis from the dermis; most authors believe toxic epidermal necrolysis (TEN) and SJS are different ends of the same spectrum of disease