Central Public Health Laboratory (1 folded sheet (6 p.) : ill. (col.) ; 21 cm.) -- The PHLS water microbiology external quality assessment scheme (1 folded sheet (4 p.) ; 21 cm.) -- Publications catalogue / Public Health Laboratory Service (12 p. : ill. ; 21 cm.) -- The United Kingdom national external quality assessment scheme for medical microbiology (1 folded sheet (4 p.) ; 21 cm.) -- The PHLS food microbiology external quality assessment scheme (1 folded sheet (4 p.) : ill. (col.) ; 21 cm.) -- Network PHLS: the role of the Public Health Laboratory Service (1 folded sheet (4 p.) : ill. (col.) ; 30 cm.) -- The work of area and regional PHLS laboratories: Public Health Laboratory Service (1 folded sheet (4 p.) :ill. (col.) ; 30 cm.) -- Quarterly AIDS and HIV figures [sample issue] (5 p. ; 30 cm.) -- PHLS-SVS update on salmonella infection [sample issue] (1 folded sheet (4 p.) : ill. ; 30 cm.) -- PHLS microbiology digest [sample issue] (96 p. : ill. ; 30 cm.) -- CDR review: communicable disease report [sample issue] (12 p. : ill. ; 30 cm.).