Gratia, A. (1925) Sur un remarquable example d’antagonisme entre deux souches de colibacille. Compt. Rend. Soc. Biol, 93, 1040-1042. Referred from: Gratia, J.P. (2000) Andre Gratia: A Forerunner in Microbial and Viral Genetics. Genetics, 156, 471-476.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstrac t&list_uids=11014798"PMID 11014798

has been cited by the following article:

• TITLE: Super Antibiotics, Part IV. Hyperforin, Relative and Absolute Stereochemistry Elucidated by Gas-Chromatography Mass-Spectrometry with Supersonic Molecular Beams

  AUTHORS: Ilia Brondz

  KEYWORDS: Hyperforin, Perforatrin, Relative and Absolute Stereochemistry, Gas Chromatography-Mass Spectrometry, Chirality

  JOURNAL NAME: International Journal of Analytical Mass Spectrometry and Chromatography, Vol.5 No.3, September 22, 2017

  ABSTRACT: Relative and absolute stereochemistry for hyperforin has been proposed by Brondz et al. was supported and new isomer of hyperforin-perforatrin has been discovered. Relative and absolute stereochemistry for perforatrin was proposed and elucidated by using gas-chromatography mass-spectrometry with supersonic molecular beams (SMB). The possibility of the existence of ambiguities in chirality as a hypothesis for the existence, and a new understanding, of chiral substances with shifting chirality is presented.