function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abdinbekova, Arifa & Huseynova, Ellada & Kerimova, Ilhama', 1],
    ['Belokobylskij, S. A. & Ku, D. - S.', 1],
    ['Belokobylskij, Sergey A. & Achterberg, Cornelis Van', 9],
    ['Belokobylskij, Sergey A. & Ku, Deok-Seo & Broad, Gavin R.', 6],
    ['Belokobylskij, Sergey A. & Kula, Robert R.', 2],
    ['Belokobylskij, Sergey A. & Zaldívar-Riverón, Alejandro', 4],
    ['Beyarslan, Ahmet', 6],
    ['Broad, Gavin R. & Shaw, Mark R. & Godfray, H. Charles J.', 4],
    ['Cao, Liang-Ming & Achterberg, Cornelis Van & Tang, Yan-Long', 1],
    ['Edmardash, Yusuf A. & El-Ghiet, Usama M. Abu & Soliman, Ahmed M.', 2],
    ['Madl, M. & Achterberg, C. Van', 14],
    ['Oanh, Nguyen Thi & Long, Khuat Dang', 4],
    ['Samin, N. & Ghahari, H. & N. S & Davidian, E.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=55)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);