Fonnum F, Soli NE, Opstad PK, Opsahl M, Lund-Karlsen R (1981) Biochemical and Pupillographic Studies of Guinea Pig Iris During Acetylcholinesterase Inhibition Advances in Behavioral Biology25: 569-577
Fonnum F, Soli NE, Opstad PK, Opsahl M, Lund-Karlsen R (1981) Advances in Behavioral Biology25: 569-577