Good places to look for guidelines & recommendations
Often published in the discipline’s national association journal
Cardiac & Thoracic
AHA Guidelines
https://professional.heart.org/en/guidelines-and-statements
ACCP (American College of Chest Physicians) Guidelines & Consensus Statements
https://www.chestnet.org/guidelines-and-topic-collections
Published in the journal Circulation—http://circ.ahajournals.org/
Anesthesiology
Anesthesiology — American Society of Anesthesiologist
https://www.asahq.org/standards-and-guidelines
Infectious Diseases
IDSA (Infectious Diseases Society of America) Practice Guidelines
www.idsociety.org/IDSA_Practice_Guidelines/
Medicine
AAFP Clinical Policies and guidelines
ACP Clinical Recommendations
NHLBI Clinical Practice Guidelines​
https://www.nhlbi.nih.gov/health-pro/guidelines/current
Obstetrics & Gynecology Guidelines
-Committee Opinions—https://www.acog.org/clinical/clinical-guidance/committee-opinion
-Practice Bulletins — published in Obstetrics & Gynecology https://www.acog.org/clinical/clinical-guidance/practice-bulletin
-Technology Assessments — published in Obstetrics & Gynecology http://www.greenjournal.org
Pediatrics
Pediatrics Policy Statements, Clinical Practice Guidelines & Technical and Clinical Reports
American Academy of Pediatrics — https://publications.aap.org/pediatrics/pages/policy
Published in Pediatrics — http://pediatrics.aappublications.org/
General
National Guideline Clearinghouse—http://www.guidelines.gov/
US Preventive Services Task Force Recommendations for Primary Care Practice https://www.uspreventiveservicestaskforce.org/Page/Name/recommendations