function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beier, Max', 7],
    ['Benedict, Ellen M. & Malcolm, David R.', 1],
    ['Chamberlin, Joseph Conrad', 9],
    ['Ellingsen, Edvard', 1],
    ['Feio, J. L. De Araújo', 1],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 2],
    ['Hadži, Jovan', 1],
    ['Harvey, Mark S. & Šťáhlavský, František', 1],
    ['Hernández-Corral, Jesús & Zaragoza, Juan A. & Micó, Estefanía', 1],
    ['Hoff, C. Clayton', 6],
    ['Mahnert, Volker & Iorio, Osvaldo Di & Turienzo, Paola', 7],
    ['Morikawa, Kinichi', 2],
    ['Muchmore, William B.', 1],
    ['Romero-Ortiz, Catalina & García, Fabian & Villarreal, Eduardo', 3],
    ['With, Carl Johannes', 2],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=47)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);