Lactobacillus acidophilus / Lactobacillus delbrueckii subsp. bulgaricus
lactobacillus acidophilus / lactobacillus delbrueckii subsp. bulgaricus
Lactobacillus acidophilus / Lactobacillus delbrueckii subsp. bulgaricus
lactobacillus acidophilus / lactobacillus delbrueckii subsp. bulgaricus