A. Johan

发表

C. Chan, Y. T. Wang, H. Chia, 1997, The European respiratory journal.

B. Thong, S. Goh, B. Thong, 2001, Annals of the Academy of Medicine, Singapore.

K. K. Tan, A. Johan, 1972, Singapore medical journal.

D Machin, D. Machin, O M Chay, 2000, Pediatric pulmonology.

L. Hsu, K. N. Lam, A. Johan, 2007, Annals of the Academy of Medicine, Singapore.

W. Pek, A. Johan, L. Phoa, 2002, Singapore medical journal.