Kusumaningrum, N., Wicaksono, D., Winarni, D.R.A., Wirohadidjojo, Y.W. and Radiono, S. 2019. Slow responder against methotrexate 50 mg intramuscular in severe psoriatic patients: A case series. Dermatology Reports. 11, s1 (Apr. 2019). DOI:https://doi.org/10.4081/dr.2019.8080.