Gennser, G Response to adrenaline, acetylcholine and change of contraction frequency in early human foetal hearts. [electronic resource] - Experientia Oct 1970 - 1105-7 p. digital Publication Type: Journal Article ISSN: 0014-4754 Standard No.: 10.1007/BF02112702 doi Subjects--Topical Terms: Acetylcholine--pharmacologyAction PotentialsEpinephrine--pharmacologyFemaleFetal Heart--drug effectsHumansIn Vitro TechniquesMembrane PotentialsMuscle Contraction--drug effectsMyocardiumPerfusionPregnancyStimulation, Chemical