function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alberto T. Barrion & Aimee Lynn A. Barrion-Dupo', 1],
    ['Biswas, B. & Majumder, S. C.', 4],
    ['Dean, David Allen', 1],
    ['Dimitrov, Dimitar & Hormiga, Gustavo', 2],
    ['Ferreira-Sousa, Leonardo & Venticinque, Eduardo Martins', 2],
    ['Jäger, Peter', 1],
    ['Lin, Yejie & Wu, Lingbing & Cai, Ducheng & Li, Shuqiang', 1],
    ['Lopardo, Lara & Hormiga, Gustavo', 1],
    ['Marusik & Omelko & Koponen', 2],
    ['Marusik, Yuri M. & Koponen, Seppo', 2],
    ['Norma-Rashid, Y. & Li, Daiqin', 3],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 1],
    ['Trilikauskas, L. A.', 1],
    ['Trilikauskas, L. A. & Sergeev, M. E.', 1],
    ['Álvarez-Padilla, Fernando & Hormiga, Gustavo', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=24)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);