T-SQL (SS2K8) :: Two From Clause In DELETE Statement

I am supposed to delete all rows from USER and its child tables based on PracticeID = '55' filter condition.

I have dynamically generated queries to delete child table first followed by parent. Table [EncounterSignOff] si child and [User] is parent.

I would like to know, whether the Query 1 is valid for deleting child records?

Query:1

DELETE Top(100000) FROM [dbo].[EncounterSignOff]
FROM [dbo].[User] INNER JOIN [dbo].[EncounterSignOff] ON [User].[UserID] = [EncounterSignOff].[UserId]
WHERE [User].PracticeID = '55';

Query:2

DELETE Top(100000) FROM [dbo].[User] WHERE [User].PracticeID = '55';