3048118 MPDT mechanical pain detection thresholds 3 3048114 MPDT magnetoplasmadynamic thruster 2 3048112 MPDT marker production doubling time 2 3048120 MPDT modified percutaneous dilative tracheostomy 2 3048115 MPDT magnetoplasmadynamic 1 3048113 MPDT major pancreatic duct transection 1 3048117 MPDT Marcenko-Pastur Distribution Test 1 3048111 MPDT maternal periodontal disease treatment 1 3048123 MPDT maximal potential desiccation tolerance 1 3048122 MPDT mild pain detection threshold 1 3048121 MPDT modal persistent dwell time 1 3048119 MPDT modified technique for percutaneous dilational tracheostomy 1 3048116 MPDT Multi-marker Pedigree Disequilibrium Test 1