function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dalman, Johan Wilhelm', 1],
    ['Demirel, Mustafa & Tataroğlu, Musa & Katilmiş, Yusuf', 3],
    ['Forshage, Mattias & Bowdrey, Jeremy & Broad, Gavin R.', 12],
    ['Karaca, Gamze & Katilmiş, Yusuf', 1],
    ['Nastasi, Louis F. & Buffington, Matthew L. & Davis, Charles K.', 1],
    ['Nastasi, Louis F. & Deans, Andrew R.', 37],
    ['Pujade-Villar, Juli & Wang, Yiping & Zhang, Wenli', 1],
    ['Say, Thomas', 1],
    ['Zhu, Qifan & Looney, Chris & Chen, Tianlin', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=59)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);