function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brady, George Stewardson', 4],
    ['Brandão, Simone N. & Saeedi, Hanieh & Brandt, Angelika', 2],
    ['Chavtur, Vladimir G. & Brandão, Simone N.', 10],
    ['Chavtur, Vladimir G. & Keyser, Dietmar & Bashmanov, Alexander G.', 1],
    ['Hiruta, Shin-ichi', 1],
    ['Kornicker, Louis S. & Iliffe, Thomas M.', 2],
    ['Kornicker, Louis S. & Van, Barry W. M. & Bakel', 11],
    ['Parker, A. R.', 3],
    ['Parker, Andrew R.', 1],
    ['Schornikov, Evgeny I.', 1],
    ['Yamada, Koshi & Hiruta, Shin-ichi', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=38)',
    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);