function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bakovic, Najla & Siemensma, Ferry & Puljas, Sanja', 1],
    ['Bankov, Nikola & Todorov, Milcho & Ganeva, Anna', 16],
    ['Doweld, Alexander B.', 2],
    ['Edmondson, Charles Howard & Kingman, Robert Hills', 1],
    ['Garcca, Célcne & Haond, Chrcstophe & Chollet, Bruno', 2],
    ['Lee, Won Je', 9],
    ['Lee, Won Je & Patterson, David J.', 27],
    ['Leidy, Joseph', 1],
    ['Patsyuk, M. K.', 1],
    ['Shiratori, Takashi & Ishida, Ken-Ichiro', 1],
    ['Shɨshkin, Yegor', 3],
    ['Wylezich, Claudia & Mylnikov, Alexander P. & Weitere, Markus', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=65)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);