[Sustained-release ++theophyllins of 12 and 24 hours. Comparative study].
Vendrell
M
M
de Gracia
L
L
Morell
F
F
D003692:Delayed-Action Preparations; D006801:Humans; D013806:Theophylline / Q000008:administration & dosage*; D013997:Time Factors
D003692:Delayed-Action Preparations; D013806:Theophylline