We found 2 dictionaries that define the word observational studies:

General (1 matching dictionary)

1. Observational studies: Wikipedia, the Free Encyclopedia

Medicine (1 matching dictionary)

2. observational studies: Medical dictionary

▸ Words similar to observational studies ▸ Usage examples for observational studies ▸ Idioms related to observational studies ▸ Wikipedia articles (New!) ▸ Words that often appear near observational studies ▸ Rhymes of observational studies ▸ Invented words related to observational studies