function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Duwal, Ram Keshari & Jung, Sunghoon & Yasunaga, Tomohide', 1],
    ['Ghahari, H. & F, Amblytylus & R, Atomoscelis & D, Badezorus', 1],
    ['Ghahari, Hassan & Chérot, Frédéric', 13],
    ['Ishikawa, Tadashi & Saito, Masayuki U. & Kishimoto-Yamada, Keiko', 2],
    ['Jerinic-Prodanovic, Dusanka & Protic, Ljiljana', 1],
    ['Kim, Ok-Kyung & Ishikawa, Tadashi & Yamada, Yoshihiro', 2],
    ['Konstantinov, Fedor V.', 2],
    ['Konstantinov, Fedor V. & Namyatova, Anna A.', 1],
    ['Konstantinov, Fedor V. & Neimorovets, Vladimir V.', 3],
    ['Konstantinov, Fedor V. & Vinokurov, Nikolay N.', 1],
    ['Linnavuori, Rauno E.', 10],
    ['Schuh, Randall Tobias', 1],
    ['Usinger, Robert L.', 3],
    ['Yasunaga, Tomohide & Duwal, Ram Keshari', 5],
    ['Çerçi, Barış & Koçak, Özgür & Tezcan, Serdar', 2],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=49)',
    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);