There are multiple definitions:

1. surgically induced astigmatism(English)

   • B-MICS, BCVA, BSS, C-MICS, CCT, EPT, MICS, PKE, SICS, UST
   • Ophthalmology, Iatrogenic
   • https://doi.org…55/2017/3737603

2. supplementary immunization activity(English)

   • MNTE, SIA, TTCV, UNICEF, WHO
   • Immunology, Vaccination
   • https://www.afr…ule 3 - web.pdf

3. small-intestinal angiodysplasia(English)

   • a distinct vascular abnormality characterized by focal accumulation of ectatic vessels in the mucosa and submucosa, is an increasingly recognized cause of repeat obscure gastrointestinal (GI) bleeding and iron-deficiency anemia, and it is the most common cause of bleeding in the small intestine, especially among patients older than 50 years of age
   • EGFL6, GI
   • Gastroenterology, Vascular disease
   • https://doi.org…6/NEJMoa2303706