Trade Development Authority of Pakistan (TDAP) will organise Pakistan's participation in a leading exhibition of healthcare products and services, "Hospitalar" to be held in Sao Paulo, Brazil from May 24, 2011. According to TDAP here on Thursday, the interested parties can apply before December 24, for participation in 18th edition of international fair of products, equipment, services and technology for hospitals, laboratories, pharmacies, health clinics and medical offices.