In the field of dermatology, he authored papers on topics such as : psoriasis, erythema multiforme, varicella, pemphigus vegetans and pemphigus conjunctiva.
2.
In an 1886 publication of " Vierteljahrsschrift f�r Dermatologie und Syphilis ", he described a type of pemphigus vulgaris, which later became known as Pemphigus vegetans of Neumann.
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