| PLL | peripheral light loss; phase-locked loop; poly-L-lysine; pressure length loop; posterior longitudina... |
|---|---|
| SACH foot | Solid-Ankle Cushion Heel foot |
| CH | case history; Chediak-Higashi [syndrome]; chiasma; Chinese hamster; chloral hydrate; cholesterol; Ch... |
| HB | health board; heart block; heel to buttock; held back; hemoglobin; hepatitis B; His bundle; hold bre... |
| HK | hand to knee; heat-killed; heel-to-knee; hexokinase; human kidney |