1. 
   MTD
   The highest dose of a drug or treatment that does not cause unacceptable side effects. The MTD is determined in clinical trials by testing increasing doses on different groups of people until the highest dose with acceptable side effects is found. Also called maximum tolerated dose.
   Found op http://www.cancer.gov/dictionary?expand=M
   
   
2. 
   MTD
   [mobile network] MTD (Swedish abbreviation for Mobiltelefonisystem D, or Mobile telephony system D) was a manual mobile phone system for the 450 MHz frequency band. It was introduced in 1971 in Sweden, and lasted until 1987, when it was made obsolete by the NMT automatic service. The MTD net...
   Found op http://en.wikipedia.org/wiki/MTD_(mobile_network)
   
   

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