. . "yu zhen Gu" . "顧玉珍" . "顧玉珍" . "顧毓珍" . "顾玉珍" . "谷玉珍" . "yu" . "Gu, Yuzhen"@nl-NL . "Yü-chen Ku" . . "顧玉珍" . "谷玉珍" . "Ku" . . "1900" . "Yuzhen"@en . "顾毓珍" . "Yü-chen" . "yu Gu yu zhen" . "Yü-chen Ku" . . "Yuzhen Gu" . "顾玉珍" . "Yuzhen Gu"@en . "Gu"@en . "谷玉珍" . "顧毓珍" . . . "顾毓珍" . . "yu" . "zhen" . "顧毓珍" . "Gu yu zhen" .