What causes skin pigmentation and hyperpigmentation
For well-known TCM herbs, official pharmacopeias (e.g., Chinese Pharmacopoeia) often specify marker compounds and minimum content levels (see Supplementary Table S2 for examples)
Specifically, we propose to add the following criterion for targeting up to 200 additional hospitals for validation: Any hospital with a two-tailed confidence interval that is less than 75 percent, and that had less than four quarters of data due to receiving an ECE for one or more quarters
On the contrary, phylloquinones are mainly present in green leafy vegetables as previously mentioned such as lettuce, chard, parsley, spinach, cabbage, broccoli, kale, and other green cruciferous vegetables [186, 188]