[Studies of treponema on black background after friction with alcohol].
D001741:Black or African American; D044383:Black People; D000431:Ethanol; D017276:Friction; D006801:Humans; D013587:Syphilis / Q000175:diagnosis*; D014208:Treponema
D000431:Ethanol
SYPHILIS/diagnosis
Recherche des tréponèmes au fond noir après friction à l'alcool.