function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bukejs, Andris', 1],
    ['Ekiz, Ali Nafiz & Şen, İsmail & Aslan, Ebru Gül & Gök, Ali', 1],
    ['Kimoto, Shinsaku & Gressitt, J. Linsley', 1],
    ['Kunze, Gustav', 1],
    ['Li, Kai-Qin & Liang, Hong-Bin', 6],
    ['Li, Kaiqin & Liang, Hongbin', 31],
    ['Sekerka, Lukáš & Vives, Eduard', 7],
    ['Sergeev, М. Е.', 2],
    ['Takemoto, Takuya', 11],
    ['Webster, Reginald P. & LeSage, Laurent & DeMerchant, Ian', 1],
    ['Webster, Reginald P. & Webster, Vincent L.', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=65)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);