Knowledge, attitudes and intention on fertility preservation among breast cancer patients oleh Jennifer K. Y. Ko, Charleen S. Y. Cheung, Heidi H. Y. Cheng, Sofie S. F. Yung, Ting Ying Ng, Winnie W. Y. Tin, Ho Yan Yuen, Martin H. C. Lam, Ann S. Y. Chan, Sara W. W. Fung, Vivian C. M. Man, Ava Kwong, Ernest H. Y. Ng