There are multiple definitions:

1. superficial punctate keratitis(English)

   • Ophthalmology, Pathology

2. sphingosine kinase(English)

   • affects not only endothelial cell signaling but also tumor cells expressing VEGF receptors
   • VEGF
   • Endothelium, Signal transduction
   • https://www.ncb…cles/PMC134718/

3. simultaneous pancreas-kidney [transplant](English)

   • owing to a variety of factors including improved surgical technique, immunosuppression, donor and recipient selection, and graft surveillance – with greater reliance on pancreas biopsy – the half-life has steadily increased to over 14 years
   • LKT, PAK, PKT, SPT
   • Pancreas, Kidney and adrenals, Transplantation, Biopsy
   • https://doi.org…000000000000146