Somsak Kuptniratsaikul. 2004. The effectiveness and safety of intra-articular injection of Actovegin in osteoarthritis of the knee : a phase two clinical trial. Field of Study Health Development, Chulalongkorn University;
Somsak Kuptniratsaikul. (2004) The effectiveness and safety of intra-articular injection of Actovegin in osteoarthritis of the knee : a phase two clinical trial . Chulalongkorn University/Bangkok.
Somsak Kuptniratsaikul. The effectiveness and safety of intra-articular injection of Actovegin in osteoarthritis of the knee : a phase two clinical trial. . Bangkok:Chulalongkorn University, 2004.
Somsak Kuptniratsaikul. (2004) The effectiveness and safety of intra-articular injection of Actovegin in osteoarthritis of the knee : a phase two clinical trial . Chulalongkorn University/Bangkok.