S. Cheng

Gold-induced fulminant colitis in a patient with psoriatic arthritis.

F. Lee, S. Pan, J. K. Lin, 1988, Journal of clinical gastroenterology.

Topical application of thio-tepa to penile and urethral tumors.

R. Veenema, S. Cheng, 1965, The Journal of urology.

Seborrheic keratosis of penis.

S. Cheng, 1974, Urology.