title: Cooperative infection of P1-lysogenic bacteria by restricted phage T1.
mesh_terms: D003090:Coliphages; D003673:Defective Viruses; D004926:Escherichia coli; D005827:Genetics, Microbial; D008242:Lysogeny; D011995:Recombination, Genetic; D012762:Shigella dysenteriae