Pongsak Yuktanandana. 2002. A randomized, controlled trial to compare the efficacy of oral rofecoxib and intra-muscular diclofenac sodium for the treatment of post-operative pain after major orthopedic surgery. Field of Study Health Development, Chulalongkorn University;

Pongsak Yuktanandana. A randomized, controlled trial to compare the efficacy of oral rofecoxib and intra-muscular diclofenac sodium for the treatment of post-operative pain after major orthopedic surgery. . Bangkok:Chulalongkorn University, 2002.

Pongsak Yuktanandana. (2002) A randomized, controlled trial to compare the efficacy of oral rofecoxib and intra-muscular diclofenac sodium for the treatment of post-operative pain after major orthopedic surgery . Chulalongkorn University/Bangkok.