Supply and demand: that's the basis of any film distribution program.
Christiansen
C H
CH
Weinberg
A D
AD
Ullian
L
L
D002309:Cardiology / Q000193:education; D004502:Education, Medical, Continuing; D006330:Heart Defects, Congenital / Q000150:complications; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000209:etiology; D009040:Motion Pictures / Q000600:supply & distribution*; D012120:Respiration Disorders / Q000209:etiology; D013781:Texas