The histogram of MeSH term frequency of Longitudinal Studies

MeSH term

Count
Longitudinal Studies	851
*Longitudinal Studies	4
Longitudinal Ligaments/pathology/surgery	1
Ossification of Posterior Longitudinal Ligament/*genetics	4
Ossification of Posterior Longitudinal Ligament/*genetics/physiopathology	1
Ossification of Posterior Longitudinal Ligament/*genetics/metabolism	1
Ossification of Posterior Longitudinal Ligament/genetics/*pathology	1
Ossification of Posterior Longitudinal Ligament/*genetics/pathology	1
Cohort Studies	2583
*Seroepidemiologic Studies	1
*Multicenter Studies	1
*Sampling Studies	1
*Intervention Studies	1
*Cohort Studies	2
*Epidemiologic Studies	1
Intervention Studies	21
Follow-Up Studies	3504
Prospective Studies	4073
Retrospective Studies	3472
Sampling Studies	181
Multicenter Studies	121
Feasibility Studies	222
Twin Studies	18
Cross-Over Studies	609
Evaluation Studies	682
Epidemiologic Studies	45
Seroepidemiologic Studies	103
Time and Motion Studies	3
*Case-Control Studies	9
Multicenter Studies/*trends	1
Multicenter Studies/standards	1
*Time and Motion Studies	1
Cross-Sectional Studies	1207
Organizational Case Studies	2
Case-Control Studies	5140
Multicenter Studies/statistics & numerical data	2