Abstract
References
1.
Norrby R
,
Foord R D
, &
Hedlund P
(1977 ) Journal of Antimicrobial Chemotherapy 3 , 355
2.
O'Callaghan C H
,
Sykes R B
,
Ryan D M
,
Foord R D
, &
Muggleton P W
(1976 ) Journal of Antibiotics 29 , 29