P. B. O. oven [penicillin in beeswax and oil].
PARKHURST
G E
GE
SAUBERLI
H A
HA
D006801:Humans; D018541:Neptune; D010406:Penicillins; D011092:Polyethylene Glycols; D014885:Waxes
D010406:Penicillins; D014885:Waxes; C038228:beeswax; D011092:Polyethylene Glycols