function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 3],
    ['Cassar, Thomas & Mifsud, David & Decae, Arthur E.', 3],
    ['Decae, Arthur & Pantini, Paolo & Isaia, Marco', 4],
    ['Dimitrov, Dragomir & Zonstein, Sergei', 3],
    ['Ghirotto, Victor Morais & Guadanucci, José Paulo Leite', 5],
    ['Harvey, Frances S. B. & Framenau, Volker W.', 10],
    ['Huey, Joel A. & Rix, Michael G. & Wilson, Jeremy D.', 4],
    ['Indicatti, Rafael P. & Chavari, João L.', 9],
    ['Kunsete, Chawakorn & Sivayyapram, Varat & Traiyasut, Prapun', 9],
    ['Li, Shuqiang & Zonstein, Sergei', 12],
    ['Rix, Michael G. & Wilson, Jeremy D. & Harvey, Mark S.', 13],
    ['Ríos-Tamayo, Duniesky & Lyle, Robin', 12],
    ['Zonstein, Sergei', 7],
    ['Zonstein, Sergei & Kunt, Kadir B. & Yağmur, Ersen A.', 20],
    ['Zonstein, Sergei & Marusik, Yuri M.', 9],
    ['Other (24)', 37]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=160)',
    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);