TY - RPRT TI - Conventional and molecular methods for understanding probiotic bacteria functionality in gastrointestinal tracts. AU - S C Ricke AU - S D Pillai PY - 1999 DO - 10.1080/10408419991299176 UR - https://pubmed.ncbi.nlm.nih.gov/10342098/ ID - 10342098 ER -