function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boonmachai, Tuangthong & Bergey, Elizabeth A.', 4],
    ['Brook, Fred J. & Ablett, Jonathan D.', 1],
    ['Budha, Prem B. & Naggs, Fred & Backeljau, Thierry', 18],
    ['Cavallari, Daniel C. & Dornellas, Ana Paula S.', 4],
    ['Chen, Zhe-Yu', 1],
    ['Dumrongrojwattana, Pongrat & Kamtuptim, Chanakarn', 6],
    ['Foon, Junn Kitt & Clements, Gopalasamy Reuben & Liew, Thor-Seng', 9],
    ['Greke, Kristine', 8],
    ['Hausdorf, Bernhard', 19],
    ['Heryanto & Mujiono, Nova & Laitupa, Ibnu Wahab', 2],
    ['Inkhavilay, Khamla & Sutcharit, Chirasak & Bantaowong, Ueangfa', 7],
    ['Lee, Jie Ying & Nasir, Nurul Syafiqah', 2],
    ['Marzuki, Mohammad Effendi bin & Liew, Thor-Seng', 8],
    ['Phung, Chee-Chean & Yu, Fred Tuh Yit & Liew, Thor-Seng', 2],
    ['Vermeulen, Jaap J. & Liew, Thor-Seng & Schilthuizen, Menno', 3],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=99)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);