function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chérot, F. & Malipatil, M. B.', 2],
    ['Ghahari, H. & F, Amblytylus & R, Atomoscelis & D, Badezorus', 2],
    ['Ghahari, Hassan & Chérot, Frédéric', 6],
    ['Jung, Sunghoon & Kim, Junggon & Oh, Sumin & Heiss, Ernst', 1],
    ['Linnavuori, Rauno E.', 7],
    ['Norbiato, Margherita & Dioli, Paride & Cianferoni, Fabio', 3],
    ['TASZAKOWSK, Artur & PASIŃSKA, Agnieszka', 4],
    ['Tezcan, S. & Gulpercin, N. & Fent, M.', 1],
    ['Ukhova, N. L. & Sergeeva, E. V. & Ivanov, S. A.', 1],
    ['Vinokurov, N. N. & Rudoi, V. V.', 2],
    ['Vinokurov, Nikolay N. & Rudoi, Valentin V.', 2],
    ['Yazici, Gülten & Yildirim, Erol', 3],
    ['Zamani, Mozhgan & Hosseini, Reza', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    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);