Metal on Metal Hip Arthroplasty

New channel Husky Orthopaedics: title sample judged 'pick' (Mostly substantive grand rounds and clinical lectures teaching orthopaedic surgery topics, but mixed with some non-teach); passed a second screen for sellers/exam-prep/re-uploads; 2 of 3 sampled transcripts showed teaching, 1 not; titles picked one by one, checked strictly; oEmbed verified.