function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abdinbekova, Arifa & Huseynova, Ellada & Kerimova, Ilhama', 4],
    ['Beyarslan, A. & Yurtcan, M. & Çetin, Ö. & Aydogdu, M.', 1],
    ['Broad, Gavin R. & Shaw, Mark R. & Godfray, H. Charles J.', 4],
    ['Cresson, E. T.', 1],
    ['Fabricius, Johann Christian', 1],
    ['Ghahari, H. & Fischer, M. & Cetin, O. & Beyarslan, A.', 1],
    ['Ghahari, H. & Fischer, M. & Sakenin, H. & Imani, S.', 2],
    ['Madl, M.', 17],
    ['Madl, Michael', 1],
    ['N. S & Ghahari, H. & F, Bassus & E, Camptothlipsis', 3],
    ['Nees von Esenbeck, C. G.', 4],
    ['Papp, Jenö', 1],
    ['Samin, Najmeh & Ghahari, Hassan & I, Boyerahmad.', 1],
    ['Tang, Pu & Van Achterberg, Cornelis & Chen, Xue-Xin', 5],
    ['van Achterberg, Cornelis & Long, Khuat Dang', 4],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=51)',
    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);