function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abdinbekova, Arifa & Huseynova, Ellada & Kerimova, Ilhama', 4],
    ['Achterberg, C. van & Hosaka, T. & Ng, Y. F. & Ghani, Idris B. A.', 1],
    ['Achterberg, Cornelis van', 29],
    ['Broad, Gavin R. & Shaw, Mark R. & Godfray, H. Charles J.', 10],
    ['Edmardash, Yusuf Abd-Elaziz & Abdel-Dayem, Mahmoud Saleh', 7],
    ['Fullaway, D. T.', 2],
    ['Ghramh, Hamed Ali', 1],
    ['Gupta, Ankita & Achterberg, Cornelis Van', 1],
    ['Hovorka, Tomáš & Macek, Jan', 1],
    ['Kittel, Rebecca N. & Austin, Andrew D.', 8],
    ['Madl, M. & Achterberg, C. Van', 10],
    ['N. S & Ghahari, H. & W, Ascogaster & P, Chelonus', 12],
    ['Samin, Najmeh & Ghahari, Hassan & S, Neveen & Monaem, R.', 1],
    ['Sharkey, Michael J. & Janzen, Daniel H. & Hallwachs, Winnie', 23],
    ['Tsang, Winson & You, Lan-Shao & Achterberg, Cornelis Van', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=111)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);