Results 291 to 300 of about 51,352,550 (334)

Observational Studies

Community Oncology, 2010
Harald Herkner, Christoph Male
openaire   +2 more sources

Observational Studies

Focus on Alternative and Complementary Therapies, 2007
Sana Loue, Earl C. Pike
  +5 more sources

Observational study of behavior: sampling methods.

Behaviour, 1974
J. Altmann
semanticscholar   +1 more source

Observational Studies

The American Statistician, 1996
Rob Lyerla, Paul R. Rosenbaum
  +5 more sources

Observational Study Designs

Headache: The Journal of Head and Face Pain, 2019
Dana P, Turner, Timothy T, Houle
openaire   +2 more sources

American Cancer Society nutrition and physical activity guideline for cancer survivors

Ca-A Cancer Journal for Clinicians, 2022
Cheryl L Rock, Cynthia A Thomson, Carol L Howe   +2 more
exaly  

Symptom prevalence, duration, and risk of hospital admission in individuals infected with SARS-CoV-2 during periods of omicron and delta variant dominance: a prospective observational study from the ZOE COVID Study

Lancet, The, 2022
Cristina Menni, Ana M Valdes, Michela Antonelli   +2 more
exaly  

Reporting observational studies

BJOG: An International Journal of Obstetrics & Gynaecology, 1989
openaire   +2 more sources

Observational Studies

2022
openaire   +1 more source

Observational studies

Technometrics, 2003
Rasmussen, E.A., Turner, J., Ninomiya, K., Renfrew, I.A.   +3 more
openaire   +3 more sources