Bags of air.
Massey
S R
SR
Adhikary
G S
GS
D000388:Air; D004618:Embolism, Air / Q000517:prevention & control; D004867:Equipment Design; D005440:Fluid Therapy / Q000009:adverse effects / Q000295:instrumentation*; D006801:Humans; D012965:Sodium Chloride; D006113:United Kingdom; D014481:United States
D012965:Sodium Chloride