function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Almeida, Ana C. S. & Souza, Facelucia B. C. & Farias, Jamile', 1],
    ['Almeida, Ana Carolina S. & Souza, Facelucia B. C.', 1],
    ['Carter, Michelle C. & Gordon, Dennis P.', 1],
    ['Dick, Matthew H. & Ngai, Nguyen Danh & Doan, Hung Dinh', 1],
    ['Gerovasileiou, Vasilis & Rosso, Antonietta', 2],
    ['Grischenko, Andrei V. & Dick, Matthew H. & Mawatari, Shunsuke F.', 2],
    ['Harmelin, Jean-Georges & Vieira, Leandro M.', 2],
    ['Jain, Sudhanshi S. & Gordon, Dennis P. & Huang, Danwei', 1],
    ['Martino, Emanuela Di & Taylor, Paul D.', 1],
    ['Ryland, J. S.', 1],
    ['Sosa-Yañez, Armando & Vieira, Leandro M.', 2],
    ['Souto, Javier & Kaufmann, Manfred J. & Canning-Clode, João', 1],
    ['Souto, Javier & Reverter-Gil, Oscar & Ostrovsky, Andrew N.', 1],
    ['Taylor, Paul D. & Tan, Shau-Hwai Aileen', 1],
    ['Winston, Judith E. & Vieira, Leandro M.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=22)',
    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);