title: Ab initio calculations on large molecules using molecular fragments. Lincomycin model studies.
mesh_terms: D002981:Clindamycin; D008034:Lincomycin; D008956:Models, Chemical; D008968:Molecular Conformation; D011789:Quantum Theory; D013237:Stereoisomerism; D013329:Structure-Activity Relationship
chemical_list: D002981:Clindamycin; D008034:Lincomycin