function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Blagoderov, Vladimir & Hippa, Heikki & Ík, Jan Šev Č', 3],
    ['Blagoderov, Vladimir & Papp, Laszlo & Hippa, Heikki', 2],
    ['Blagoderov, Vladimir & Pollet, Marc', 9],
    ['DE SOUZA AMORIM, DALTON & RINDAL, EIRIK', 1],
    ['Grund, Martin', 1],
    ['Hippa, Heikki & Mattsson, Ingegerd & Vilkamaa, Pekka', 11],
    ['Huerta, Heron & Ibañez-Bernal, Sergio', 3],
    ['Oliveira, Sarah Siqueira & Amorim, Dalton De Souza', 3],
    ['Oliveira, Sarah Siqueira & Falaschi, Rafaela Lopes', 4],
    ['Stebner, Frauke & Singh, Hukam & Rust, Jes & Grimaldi, David A.', 2],
    ['Williston, Samuel Wendell', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=40)',
    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);