Lung Saan-Boon = Yu Chik-Lim?

According to HKFA : ??, ??? (????). in A Step to Heaven
Lung Saan-Boon / (???) http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
Yu Chik-Lim / (???) http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
Can anyone confirm if they are the same person?
Lung Saan-Boon / (???) http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
Yu Chik-Lim / (???) http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
Can anyone confirm if they are the same person?