Esher A, Coutinho T (august 2017). „Rational use of medicines, pharmaceuticalization and uses of methylphenidate”. Ciencia & Saude Coletiva (în portugheză). 22 (8): 2571–2580. doi:10.1590/1413-81232017228.08622017. PMID28793073.
Esher A, Coutinho T (august 2017). „Rational use of medicines, pharmaceuticalization and uses of methylphenidate”. Ciencia & Saude Coletiva (în portugheză). 22 (8): 2571–2580. doi:10.1590/1413-81232017228.08622017. PMID28793073.