function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cerot, Frederic', 1],
    ['Dursun, Ahmet & Fent, Meral', 1],
    ['Ghahari, H. & F, Amblytylus & R, Atomoscelis & D, Badezorus', 3],
    ['Ghahari, Hassan & Chérot, Frédéric', 14],
    ['Ghahari, Hassan & Moulet, Pierre & Behnood, Saeid', 3],
    ['Jerinic-Prodanovic, Dusanka & Protic, Ljiljana', 3],
    ['Jung, Sunghoon & Kim, Junggon & Oh, Sumin & Heiss, Ernst', 4],
    ['Kim, Junggon & Taszakowski, Artur & Jung, Sunghoon', 2],
    ['Linnavuori, Rauno E.', 12],
    ['Norbiato, Margherita & Dioli, Paride & Cianferoni, Fabio', 5],
    ['Sakenin, H. & Samin, N. & Rastegari, J. & Havaskary, M.', 2],
    ['TASZAKOWSK, Artur & PASIŃSKA, Agnieszka', 1],
    ['Tezcan, S. & Gulpercin, N. & Fent, M.', 2],
    ['Usinger, Robert L.', 1],
    ['Yazici, Gülten & Yildirim, Erol', 7],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=65)',
    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);