R. Ma

Appendicitis: the perforation rate when reviewed by decades in a general hospital.

R. Ma, Cuasay Rs, Beck Wc, 1988 .

Linkage and association between Crohn's disease and a putative locus on chromosome 12

S. Targan, Huiying Yang, J. Rotter, 1998 .

Efficacy of Prophylactic Preoperative Inferior Vena Cava Filters for Major Spinal Surgery in Adults: A Review of 219 Patients at a Single Institution

R. Tawk, R. Ma, L. León, 2005 .

Psoas abscess complicating Crohn's disease.

R. Ma, Meyer Kk, 1985 .

Menkes' kinky hair syndrome.

R. Ma, Tunnessen Ww, Pergolizzi Jj, 1982 .

Effect of vitamin A and zinc on wound healing in steroid-treated mice.

R. Ma, Beck Wc, Trevisani Mf, 1987 .