how to write materials and methods of a research article

8:11

8:07

31:40

23:45

57:39

1:00:37

2:27

1:40

2:12

4:21

3:42

19:52

16:19

6:59

9:58

6:58

6:13

2:06

6:14

3:16

7:01

13:55

6:07

11:03

6:07

7:01

2:27

1:48

17:18

5:25

21:32

15:08

5:05

3:33

7:52

6:19

13:28

4:56

12:02

1:05:09