There are multiple definitions:

1. anaplastic lymphoma kinase(English)

   • SACT, IIP, ALK-IIP, ALK-R/ROS1-R, ROS1
   • Lymphatic system/lymphoma, Oncology
   • https://doi.org…cancer.2017.764
   • https://doi.org…asc.2022.01.001

2. activin receptor-like kinase(English)

   • ALK5

3. anterior lamellar keratoplasty(English)

   • FSCM, DALK
   • Ophthalmology
   • https://doi.org…390/jcm13133644

4. automated lamellar keratoplasty(English)

   • may refer to Salzmann nodular degeneration
   • CDVA, PTK, SND
   • Ophthalmology
   • https://doi.org…b013e318243e813