function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ale-Rocha, Rosaly & Freitas-Silva, Rafael Augusto Pinheiro De', 2],
    ['Barták, Miroslav & Kubík, Štěpán', 3],
    ['Fabricius, Johann Christian', 1],
    ['Huo, Shan & Grootaert, Patrick & Yang, Ding', 4],
    ['Kanavalova, Liliana & Grootaert, Patrick & Kubik, Stepan', 1],
    ['Li, Meilin & Yang, Ding', 27],
    ['Li, Zhu & Wang, Ning & Yang, Ding', 17],
    ['Meigen, Johann Wilhelm', 4],
    ['PLANT, ADRIAN R.', 42],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 1],
    ['Shamshev, Igor & Grootaert, Patrick & Kustov, Semen', 9],
    ['Wang, Ning & Yang, Ding', 7],
    ['Yang, Ding & Gaimari, Stephen D. & Grootaert, Patrick', 1],
    ['Yang, Ding & Li, Weihai', 2],
    ['Zouhair, Laila & Kettani, Kawtar', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=123)',
    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);