function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Harding, W. A.', 1],
    ['Jueg, Uwe', 2],
    ['Nakano, Takafumi', 15],
    ['Nakano, Takafumi & Gongalsky, Konstantin B.', 2],
    ['Nakano, Takafumi & Lai, Yi-Te', 1],
    ['Nakano, Takafumi & Nguyen, Son Truong', 1],
    ['Nesemann, Hasko & Sharma, Gopal', 1],
    ['Phillips, Anna J. & Arauco-Brown, Renzo', 1],
    ['Richardson, Laurence R.', 1],
    ['Wang, Hao & Meng, Fan-Ming & Jin, Si-Jie & Gao, Jiang-Wei', 1],
    ['Westergren, Stephanie & Siddall, Mark E.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=27)',
    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);