13D Filing: James E. Flynn and DFB Healthcare Acquisitions Corp.

Page 16 of 18

Page 16 of 18 – SEC Filing

Cusip No. 23291E208

SIGNATURE

After reasonable inquiry
and to the best of their knowledge and belief, the undersigned certify that the information set forth in this statement is true,
complete and correct.

Dated: March 5, 2018

DEERFIELD MGMT IV, L.P.

By: J.E. Flynn Capital IV, LLC, General Partner

By: /s/ Jonathan
Isler

Name: Jonathan
Isler

Title: Attorney-in-Fact

DEERFIELD PRIVATE DESIGN FUND IV, L.P.

By: Deerfield Mgmt IV, L.P., General Partner

By: J.E. Flynn Capital IV, LLC, General Partner

By: /s/ Jonathan
Isler

Name: Jonathan
Isler

Title: Attorney-in-Fact

DEERFIELD MANAGEMENT COMPANY, L.P.

By: Flynn Management LLC, General Partner

By: /s/ Jonathan
Isler

Name: Jonathan
Isler

Title: Attorney-in-Fact

JAMES E. FLYNN

/s/ Jonathan Isler

Jonathan Isler, Attorney-in-Fact

STEVEN HOCHBERG

/s/ Steven Hochberg

Follow Adapthealth Corp.

Page 16 of 18