^Piérard-Franchimont C, De Doncker P, Cauwenbergh G, Piérard GE. Ketoconazole shampoo: effect of long-term use in androgenic alopecia. Dermatology (Basel). 1998, 196 (4): 474–7. PMID 9669136. doi:10.1159/000017954.
^Piérard-Franchimont C, Goffin V, Henry F, Uhoda I, Braham C, Piérard GE. Nudging hair shedding by antidandruff shampoos. A comparison of 1% ketoconazole, 1% piroctone olamine and 1% zinc pyrithione formulations. Int J Cosmet Sci. October 2002, 24 (5): 249–56. PMID 18498517. doi:10.1046/j.1467-2494.2002.00145.x.
^Khandpur S, Suman M, Reddy BS. Comparative efficacy of various treatment regimens for androgenetic alopecia in men. J. Dermatol. August 2002, 29 (8): 489–98. PMID 12227482. doi:10.1111/j.1346-8138.2002.tb00314.x.