function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Borges, Paulo A. V. & Gaspar, Clara', 2],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 3],
    ['Cruz Da Silva, Estevam L.', 2],
    ['Cruz Da Silva, Estevam L. & Gibbons, Anne & Sierwald, Petra', 2],
    ['Cruz Da Silva, Estevam L. & Sierwald, Petra', 8],
    ['Cruz da Silva, Estevam L. & Sierwald, Petra', 4],
    ['Cruz, Estevam L. & Silva, Da', 8],
    ['Dean, David Allen', 8],
    ['Deltshev, Christo & Komnenov, Marjan & Blagoev, Gergin', 6],
    ['Jäger, Peter', 38],
    ['Norma-Rashid, Y. & Li, Daiqin', 3],
    ['Santos, Adalberto J.', 17],
    ['Santos, Adalberto J. & Nogueira, André A.', 8],
    ['Sudhin, Puthoor Pattammal & Sen, Souvik & Jäger, Peter', 4],
    ['Tanikawa, Akio', 3],
    ['Other (29)', 37]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=153)',
    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);