function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bächli, Gerhard & Merz, Bernhard & Haenni, Jean-Paul', 3],
    ['Fallén, Carl Fredrik', 5],
    ['Jindr & Rohác, ich & ek', 13],
    ['Jindr & Rohác, ich & ek & Barraclough, David', 7],
    ['Perez-Gelabert, Daniel E.', 1],
    ['ROHÁýEK, JindĜich', 2],
    ['Rohacek, Jindrich', 2],
    ['Roháćek, Jindřich & Barber, Kevin N.', 45],
    ['Roháček, Jind ṙich', 2],
    ['Roháček, Jindřich', 76],
    ['Roháček, Jindřich & Barber, Kevin N.', 23],
    ['Roháček, Jindřich & Tóthová, Andrea', 1],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 1],
    ['Sinclair, Bradley J.', 1],
    ['Wang, Qian & Wang, Donghui & Shi, Li', 11],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=194)',
    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);