1 |
randomised controlled trial.pt. |
280,821 |
2 |
controlled clinical trial.pt. |
79,998 |
3 |
randomised.ab. |
196,604 |
4 |
placebo.ab. |
117,891 |
5 |
clinical trials as topic.sh. |
146,242 |
6 |
randomly.ab. |
145,491 |
7 |
trial.ab. |
203,467 |
8 |
randomised.ab. |
38,423 |
9 |
6 or 3 or 7 or 2 or 8 or 1 or 4 or 5 |
734,511 |
10 |
(animals not (human and animals)).sh. |
4,482,479 |
11 |
9 not 10 |
642,665 |
12 |
(cohort* or “case control*” or cross-sectional* or “cross sectional” or case-control* or prospective or “systematic review*”).mp. |
768,885 |
13 |
exp meta-analysis/ or expmulticenter study/ or follow-up studies/ or prospective studies/ or intervention studies/ or epidemiologic studies/ or case-control studies/ or exp cohort studies/ or longitudinal studies/ or cross-sectional studies/ |
1,013,635 |
14 |
13 or 12 |
1,203,767 |
15 |
14 not 10 |
1,154,385 |
16 |
11 or 15 |
1,599,094 |
17 |
((zinc or Zn or zinc sulphate or zinc gluconate or zinc acetate or methionine or zinc isotope*) adj3 (intake* or diet* or supplement* or deplet* or status or serum or plasma or leukocyte or concentration* or expos* or fortif* or urine or hair)).ti,ab. |
16,681 |
18 |
Nutritional Support/ or Dietary Supplements/ or nutritional requirements/ or Breast feeding/ or exp infant food/ or bottle feeding/ or infant formula/ |
63,098 |
19 |
exp Nutritional Status/ or exp Deficiency Diseases/ or supplementation/ or diet supplementation/ or dietary intake/ or exp diet restriction/ or exp mineral intake/ or Diet/ or Food, Fortified/ or nutrition assessment/ or Nutritive Value/ |
176,014 |
20 |
(intake* or diet* or supplement* or deplet* or status or serum or plasma or leukocyte or concentration* or expos* or fortif* or urine or hair).ti,ab. |
3,166,092 |
21 |
18 or 19 or 20 |
3,263,114 |
22 |
zinc/ |
41,027 |
23 |
22 and 21 |
20,745 |
24 |
23 or 17 |
26,943 |
25 |
24 and 16 |
2410 |