There are multiple definitions:

1. sympathetic preganglionic neuron(English)

   • EPN, ESN, VPN
   • Nervous activity - (para)sympathetic, Neurons

2. stochastic Petri net(English)

3. solitary pulmonary nodule(English)

   • evaluated by ultrafast Papanicolaou stain and MPR images
   • UFP, MPR
   • Pulmonology, Pathology
   • https://doi.org…hest.124.5.1985

4. spiny projection neuron(English)

   • is affected in Huntington disease
   • C-S, CAG, HD, mEPSC, NMDAR, T-S
   • Neurons, Neuropathy
   • https://doi.org…nbd.2015.11.020

5. solid pseudopapillary neoplasm(English)

   • of pancreas is an uncommon low-grade malignant tumor that has a remarkable postoperative cure rate
   • Oncology, Pancreas, Surgery
   • https://doi.org…bcr-2023-254805