Research Article
Effects of -Cystine and -Theanine Supplementation on the Common Cold: A Randomized, Double-Blind, and Placebo-Controlled Trial
Table 2
Criteria of laboratory-defined colds.
| Incidence of each main symptom |
| Nasal | Total score/day 3/6 | Throat | Pain | Febrile | Total score/day 2/4 |
| Incidence of colds |
| Number of the positive main symptom 3/day | or | Body temperature C and number of the cold symptom score | of 2 2/day | |
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