Hoos ka eeg qaybta hoose ka dibna ka jawaab su'aasha kadib isla luqadda ay ku qoran tahay qaybta: William Howard Stein (June 25, 1911 <unk> February 2, 1980) wuxuu ahaa biochemist Mareykan ah. Su'aal: goorma ayuu William Howard Stein dhintay?
2-da Febraayo 1980